Inline o.e.jdt.launching.macosx into jdt.launching

This simplifies the assembly of Eclipse runtimes on MacOS.

Fixes #849

Author: HannesWell

org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/jres/InstalledJREsBlock.java

@@ -212,11 +212,6 @@ public void run() {
 	// happen very quickly
 	private static String fgLastUsedID;
 
-	/**
-	 * VM install type id for OSX VMs
-	 */
-	public static final String MACOSX_VM_TYPE_ID = "org.eclipse.jdt.internal.launching.macosx.MacOSXType"; //$NON-NLS-1$
-
 	private String fVMListTimeStamp;
 
 	/**