Fix loading Qt plugin on linux standalone.

For standalone there is no need to link libmedia_plugin_webkit.so
against Qt's plugins, and thus also not to add "random" paths
to LD_LIBRARY_PATH. Just let Qt do it's thing and find and
load the plugins it needs itself.

indra/cmake/WebKitLibPlugin.cmake

@@ -14,18 +14,6 @@ if (STANDALONE)
         "or unset QTDIR if the found Qt is correct.")
     endif (QTDIR AND NOT "${QT_BINARY_DIR}" STREQUAL "${QTDIR}/bin")
     find_package(LLQtWebkit REQUIRED QUIET)
-    # Add the plugins.
-	set(QT_PLUGIN_LIBRARIES)
-	foreach(qlibname qgif qjpeg)
-      find_library(QT_PLUGIN_${qlibname} ${qlibname} PATHS ${QT_PLUGINS_DIR}/imageformats NO_DEFAULT_PATH)
-      if (QT_PLUGIN_${qlibname})
-	    list(APPEND QT_PLUGIN_LIBRARIES ${QT_PLUGIN_${qlibname}})
-	  else (QT_PLUGIN_${qtlibname})
-        message(FATAL_ERROR "Could not find the Qt plugin ${qlibname} in \"${QT_PLUGINS_DIR}/imageformats\"!")
-      endif (QT_PLUGIN_${qlibname})
-    endforeach(qlibname)
-    # qjpeg depends on libjpeg
-    list(APPEND QT_PLUGIN_LIBRARIES jpeg)
     set(WEBKITLIBPLUGIN OFF CACHE BOOL
         "WEBKITLIBPLUGIN support for the llplugin/llmedia test apps.")
 else (STANDALONE)
@@ -58,7 +46,7 @@ elseif (DARWIN)
         )
 elseif (LINUX)
      if (STANDALONE)
-       set(WEBKIT_PLUGIN_LIBRARIES ${LLQTWEBKIT_LIBRARY} ${QT_LIBRARIES} ${QT_PLUGIN_LIBRARIES})
+       set(WEBKIT_PLUGIN_LIBRARIES ${LLQTWEBKIT_LIBRARY} ${QT_LIBRARIES})
      else (STANDALONE)
        set(WEBKIT_PLUGIN_LIBRARIES
         llqtwebkit