WebKitLinkedOnOrAfter() check is ineffective for Solar Walk app-specific hack.

WebKitLinkedOnOrAfter() check is ineffective for Solar Walk app-specific hack.
https://bugs.webkit.org/show_bug.cgi?id=68863

Reviewed by Darin Adler.

The SolarWalk binary does not link against WebKit.framework directly,
so calling NSVersionOfLinkTimeLibrary() will not return the version of
WebKit against which SolarWalk was linked. Since Solar Walk has
released an update that addresses the issue for which this app-specific
hack was originally added, we should just remove the hack.

Source/WebCore:

* WebCore.exp.in: Remove applicationIsSolarWalkMac().
* platform/RuntimeApplicationChecks.cpp: Ditto.
* platform/RuntimeApplicationChecks.h: Ditto.

Source/WebKit:

* WebKit.xcodeproj/project.pbxproj: Remove SolarWalkQuirksUserScript.js.

Source/WebKit/mac:

* Misc/SolarWalkQuirksUserScript.js: Removed.
* WebView/WebView.mm: Removed needsSolarWalkQuirksScript(),
leakSolarWalkQuirksUserScriptContents(), and
-[WebView _injectSolarWalkQuirksScript].
(-[WebView _commonInitializationWithFrameName:groupName:]): Do not
inject the Solar Walk quirks script.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@96205 268f45cc-cd09-0410-ab3c-d52691b4dbfc