Fix for bug 55923 	should deactivated bundles be auto-reactivated?

bundles/org.eclipse.core.runtime/src/org/eclipse/core/runtime/Plugin.java

diff --git a/bundles/org.eclipse.core.runtime/src/org/eclipse/core/runtime/Plugin.java b/bundles/org.eclipse.core.runtime/src/org/eclipse/core/runtime/Plugin.java
index 2f99096..252a20d 100644
--- a/bundles/org.eclipse.core.runtime/src/org/eclipse/core/runtime/Plugin.java
+++ b/bundles/org.eclipse.core.runtime/src/org/eclipse/core/runtime/Plugin.java
@@ -942,7 +942,6 @@
 	 */
 	public void stop(BundleContext context) throws Exception {
 		context = null;
-		bundle = null;
 	}
 	
 	/**