Remove most of the "mobility" references.

Docs still need some fixing, but there are some legitimate usages of
it there.

Change-Id: I94c7b68788ce97829711a4384884d7e52fe84162
Reviewed-on: http://codereview.qt.nokia.com/1736
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>

src/multimediakit/multimediakit.pro

@@ -75,7 +75,8 @@ PUBLIC_HEADERS += \
     qvideorenderercontrol.h \
     qmediatimerange.h \
     qmedianetworkaccesscontrol.h \
-    qmediaenumdebug.h
+    qmediaenumdebug.h \
+    qtmultimediakitdefs.h
 
 SOURCES += qmediacontrol.cpp \
     qmediaobject.cpp \