Cleanup Messages.sh files for mobile

Follow the changes to the structure of the files that happened during
the porting to Frameworks.

mobile/app/Messages.sh

@@ -1,7 +1,2 @@
 #! /usr/bin/env bash
-$EXTRACTRC `find . -name \*.rc -o -name \*.ui -o -name \*.kcfg` >> rc.cpp
-$XGETTEXT `find . -name \*.qml` -L Java -o $podir/org.kde.active.documentviewer.temp.pot
-$XGETTEXT `find src/ -name "*.cpp" -o -name "*.h"` -o $podir/org.kde.active.documentviewer.pot
-$MSGCAT $podir/org.kde.active.documentviewer.temp.pot $podir/org.kde.active.documentviewer.pot -o $podir/org.kde.active.documentviewer.pot
-rm -f $podir/org.kde.active.documentviewer.temp.pot
-rm -f rc.cpp
+$XGETTEXT `find . -name \*.qml` -L Java -o $podir/org.kde.active.documentviewer.pot

mobile/components/Messages.sh

@@ -1,3 +1,2 @@
 #! /usr/bin/env bash
 $XGETTEXT `find . -name "*.cpp" -o -name "*.h"` -o $podir/org.kde.okular.pot
-rm -f rc.cpp