revert: feat(core): provide support for relative assets for components

modules/angular2/src/facade/lang.dart

@@ -72,30 +72,6 @@ class StringWrapper {
     return s == s2;
   }
 
-  static String stripLeft(String s, String charVal) {
-    if (isPresent(s) && s.length > 0) {
-      var pos = 0;
-      for (var i = 0; i < s.length; i++) {
-        if (s[i] != charVal) break;
-        pos++;
-      }
-      s = s.substring(pos);
-    }
-    return s;
-  }
-
-  static String stripRight(String s, String charVal) {
-    if (isPresent(s) && s.length > 0) {
-      var pos = s.length;
-      for (var i = s.length - 1; i >= 0; i--) {
-        if (s[i] != charVal) break;
-        pos--;
-      }
-      s = s.substring(0, pos);
-    }
-    return s;
-  }
-
   static String replace(String s, Pattern from, String replace) {
     return s.replaceFirst(from, replace);
   }

modules/angular2/src/facade/lang.ts

@@ -166,30 +166,6 @@ export class StringWrapper {
 
   static equals(s: string, s2: string): boolean { return s === s2; }
 
-  static stripLeft(s: string, charVal: string): string {
-    if (s && s.length) {
-      var pos = 0;
-      for (var i = 0; i < s.length; i++) {
-        if (s[i] != charVal) break;
-        pos++;
-      }
-      s = s.substring(pos);
-    }
-    return s;
-  }
-
-  static stripRight(s: string, charVal: string): string {
-    if (s && s.length) {
-      var pos = s.length;
-      for (var i = s.length - 1; i >= 0; i--) {
-        if (s[i] != charVal) break;
-        pos--;
-      }
-      s = s.substring(0, pos);
-    }
-    return s;
-  }
-
   static replace(s: string, from: string, replace: string): string {
     return s.replace(from, replace);
   }