Remove debug-specific def file.
Only Debug_All target uses JavaScriptCore_debug.dll naming, and since
that target is only used internally, maintaining two files just to
suppress a single link warning isn't worthwhile.

Reviewed by Jon Honeycutt.

* JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCoreCommon.vsprops:
* JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore_debug.def: Removed.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@49952 268f45cc-cd09-0410-ab3c-d52691b4dbfc