diff --git a/src/core.js b/src/core.js
index 0bca7e369..44ad7fe67 100644
--- a/src/core.js
+++ b/src/core.js
@@ -44,9 +44,6 @@ var
 	// Used for splitting on whitespace
 	core_rnotwhite = /\S+/g,
 
-	// Make sure we trim BOM and NBSP (here's looking at you, Safari 5.0 and IE)
-	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
-
 	// A simple way to check for HTML strings
 	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
 	// Strict HTML recognition (#11290: must start with <)
@@ -627,20 +624,9 @@ jQuery.extend({
 		return obj;
 	},
 
-	// Use native String.trim function wherever possible
-	trim: core_trim && !core_trim.call("\uFEFF\xA0") ?
-		function( text ) {
-			return text == null ?
-				"" :
-				core_trim.call( text );
-		} :
-
-		// Otherwise use our own trimming functionality
-		function( text ) {
-			return text == null ?
-				"" :
-				( text + "" ).replace( rtrim, "" );
-		},
+	trim: function( text ) {
+		return text == null ? "" : core_trim.call( text );
+	},
 
 	// results is for internal usage only
 	makeArray: function( arr, results ) {