webkit: revert r24983 (Disable webkit (with comment) if X is not available)

Webkit doesn't need X.

package/webkit/Config.in

@@ -1,18 +1,13 @@
 config BR2_PACKAGE_WEBKIT
 	bool "webkit"
+	select BR2_PACKAGE_LIBGTK2
 	select BR2_PACKAGE_ICU
 	select BR2_PACKAGE_CURL
 	select BR2_PACKAGE_LIBXML2
 	select BR2_PACKAGE_LIBXSLT
-	select BR2_PACKAGE_LIBGTK2
 	select BR2_PACKAGE_SQLITE
-	depends on !BR2_PACKAGE_XSERVER_none
 	help
 		WebKit is an open source, standards compliant web browser engine.
-		It runs on top of X-Windows
 
 		http://webkit.org/
 
-comment "webkit       - disabled (requires X-Windows)"
-	depends on BR2_PACKAGE_XSERVER_none
-