https://bugs.webkit.org/show_bug.cgi?id=51583

Rubber-stamped by Eric Seidel.

Actually perform the move.

* JavaScriptGlue: Removed.
* JavaScriptGlue/Configurations: Removed.
* JavaScriptGlue/Configurations/Base.xcconfig: Removed.
* JavaScriptGlue/Configurations/DebugRelease.xcconfig: Removed.
* JavaScriptGlue/Configurations/JavaScriptGlue.xcconfig: Removed.
* JavaScriptGlue/Configurations/Version.xcconfig: Removed.
* JavaScriptGlue/English.lproj: Removed.
* JavaScriptGlue/English.lproj/InfoPlist.strings: Removed.
* JavaScriptGlue/ForwardingHeaders: Removed.
* JavaScriptGlue/ForwardingHeaders/masm: Removed.
* JavaScriptGlue/ForwardingHeaders/masm/X86Assembler.h: Removed.
* JavaScriptGlue/ForwardingHeaders/profiler: Removed.
* JavaScriptGlue/ForwardingHeaders/profiler/Profiler.h: Removed.
* JavaScriptGlue/ForwardingHeaders/runtime: Removed.
* JavaScriptGlue/ForwardingHeaders/runtime/CallFrame.h: Removed.
* JavaScriptGlue/ForwardingHeaders/wtf: Removed.
* JavaScriptGlue/Forw...