Revert "Do not setPkgDataPath to source dir when running from build dir"

This reverts commit 227401d.

Otherwise, crssync fails when setting up db for running tests

src/core/qgsapplication.cpp

@@ -120,6 +120,7 @@ void QgsApplication::init( QString customConfigPath )
 #else
     setPluginPath( ABISYM( mBuildOutputPath ) + "/" + QString( QGIS_PLUGIN_SUBDIR ) );
 #endif
+    setPkgDataPath( ABISYM( mBuildSourcePath ) ); // directly source path - used for: doc, resources, svg
     ABISYM( mLibraryPath ) = ABISYM( mBuildOutputPath ) + "/" + QGIS_LIB_SUBDIR + "/";
     ABISYM( mLibexecPath ) = ABISYM( mBuildOutputPath ) + "/" + QGIS_LIBEXEC_SUBDIR + "/";
   }