diff --git a/mozilla/string/obsolete/nsString.cpp b/mozilla/string/obsolete/nsString.cpp
index 583825ff63c..355f8a764c7 100644
--- a/mozilla/string/obsolete/nsString.cpp
+++ b/mozilla/string/obsolete/nsString.cpp
@@ -235,22 +235,6 @@ PRBool nsCString::SetCharAt(PRUnichar aChar,PRUint32 anIndex){
   Lexomorphic transforms...
  *********************************************************************/
 
-/**
- * Converts all chars in internal string to lower
- * @update  gess 01/04/99
- */
-void nsCString::ToLowerCase() {
-  nsStr::ChangeCase(*this,PR_FALSE);
-}
-
-/**
- * Converts all chars in internal string to upper
- * @update  gess 01/04/99
- */
-void nsCString::ToUpperCase() {
-  nsStr::ChangeCase(*this,PR_TRUE);
-}
-
 /**
  *  This method is used to remove all occurances of the
  *  characters found in aSet from this string.
diff --git a/mozilla/string/obsolete/nsString.h b/mozilla/string/obsolete/nsString.h
index f8cb792b267..ee4ee18f37d 100644
--- a/mozilla/string/obsolete/nsString.h
+++ b/mozilla/string/obsolete/nsString.h
@@ -150,19 +150,6 @@ public:
     Lexomorphic transforms...
    *********************************************************************/
 
-  /**
-   * Converts chars in this to lowercase
-   * @update  gess 7/27/98
-   */
-  void ToLowerCase();
-
-
-  /**
-   * Converts chars in this to uppercase
-   * @update  gess 7/27/98
-   */
-  void ToUpperCase();
-
 
   /**
    *  This method is used to remove all occurances of the
diff --git a/mozilla/string/obsolete/nsString2.cpp b/mozilla/string/obsolete/nsString2.cpp
index cf518ff89b6..241b6c4b97e 100644
--- a/mozilla/string/obsolete/nsString2.cpp
+++ b/mozilla/string/obsolete/nsString2.cpp
@@ -246,22 +246,6 @@ PRBool nsString::SetCharAt(PRUnichar aChar,PRUint32 anIndex){
   Lexomorphic transforms...
  *********************************************************************/
 
-/**
- * Converts all chars in internal string to lower
- * @update  gess 01/04/99
- */
-void nsString::ToLowerCase() {
-  nsStr::ChangeCase(*this,PR_FALSE);
-}
-
-/**
- * Converts all chars in internal string to upper
- * @update  gess 01/04/99
- */
-void nsString::ToUpperCase() {
-  nsStr::ChangeCase(*this,PR_TRUE);
-}
-
 /**
  *  This method is used to remove all occurances of the
  *  characters found in aSet from this string.
diff --git a/mozilla/string/obsolete/nsString2.h b/mozilla/string/obsolete/nsString2.h
index aefb90d02d3..612c59b95a3 100644
--- a/mozilla/string/obsolete/nsString2.h
+++ b/mozilla/string/obsolete/nsString2.h
@@ -171,20 +171,6 @@ public:
    *********************************************************************/
 
 
-  /**
-   * Converts chars in this to lowercase
-   * @update  gess 7/27/98
-   */
-  void ToLowerCase();
-
-
-  /**
-   * Converts chars in this to uppercase
-   * @update  gess 7/27/98
-   */
-  void ToUpperCase();
-
-
   /**
    *  This method is used to remove all occurances of the
    *  characters found in aSet from this string.
diff --git a/mozilla/xpcom/string/obsolete/nsString.cpp b/mozilla/xpcom/string/obsolete/nsString.cpp
index 583825ff63c..355f8a764c7 100644
--- a/mozilla/xpcom/string/obsolete/nsString.cpp
+++ b/mozilla/xpcom/string/obsolete/nsString.cpp
@@ -235,22 +235,6 @@ PRBool nsCString::SetCharAt(PRUnichar aChar,PRUint32 anIndex){
   Lexomorphic transforms...
  *********************************************************************/
 
-/**
- * Converts all chars in internal string to lower
- * @update  gess 01/04/99
- */
-void nsCString::ToLowerCase() {
-  nsStr::ChangeCase(*this,PR_FALSE);
-}
-
-/**
- * Converts all chars in internal string to upper
- * @update  gess 01/04/99
- */
-void nsCString::ToUpperCase() {
-  nsStr::ChangeCase(*this,PR_TRUE);
-}
-
 /**
  *  This method is used to remove all occurances of the
  *  characters found in aSet from this string.
diff --git a/mozilla/xpcom/string/obsolete/nsString.h b/mozilla/xpcom/string/obsolete/nsString.h
index f8cb792b267..ee4ee18f37d 100644
--- a/mozilla/xpcom/string/obsolete/nsString.h
+++ b/mozilla/xpcom/string/obsolete/nsString.h
@@ -150,19 +150,6 @@ public:
     Lexomorphic transforms...
    *********************************************************************/
 
-  /**
-   * Converts chars in this to lowercase
-   * @update  gess 7/27/98
-   */
-  void ToLowerCase();
-
-
-  /**
-   * Converts chars in this to uppercase
-   * @update  gess 7/27/98
-   */
-  void ToUpperCase();
-
 
   /**
    *  This method is used to remove all occurances of the
diff --git a/mozilla/xpcom/string/obsolete/nsString2.cpp b/mozilla/xpcom/string/obsolete/nsString2.cpp
index cf518ff89b6..241b6c4b97e 100644
--- a/mozilla/xpcom/string/obsolete/nsString2.cpp
+++ b/mozilla/xpcom/string/obsolete/nsString2.cpp
@@ -246,22 +246,6 @@ PRBool nsString::SetCharAt(PRUnichar aChar,PRUint32 anIndex){
   Lexomorphic transforms...
  *********************************************************************/
 
-/**
- * Converts all chars in internal string to lower
- * @update  gess 01/04/99
- */
-void nsString::ToLowerCase() {
-  nsStr::ChangeCase(*this,PR_FALSE);
-}
-
-/**
- * Converts all chars in internal string to upper
- * @update  gess 01/04/99
- */
-void nsString::ToUpperCase() {
-  nsStr::ChangeCase(*this,PR_TRUE);
-}
-
 /**
  *  This method is used to remove all occurances of the
  *  characters found in aSet from this string.
diff --git a/mozilla/xpcom/string/obsolete/nsString2.h b/mozilla/xpcom/string/obsolete/nsString2.h
index aefb90d02d3..612c59b95a3 100644
--- a/mozilla/xpcom/string/obsolete/nsString2.h
+++ b/mozilla/xpcom/string/obsolete/nsString2.h
@@ -171,20 +171,6 @@ public:
    *********************************************************************/
 
 
-  /**
-   * Converts chars in this to lowercase
-   * @update  gess 7/27/98
-   */
-  void ToLowerCase();
-
-
-  /**
-   * Converts chars in this to uppercase
-   * @update  gess 7/27/98
-   */
-  void ToUpperCase();
-
-
   /**
    *  This method is used to remove all occurances of the
    *  characters found in aSet from this string.