Revert "controller: fix g_return statement"
Revert "controller: fix g_return statement"

This reverts commit 593d2b297bd7b5ce9dbcdf2f1ae2b7624d94d6ae.

gst_controller_set_disabled () returns a void.

krichter722/gstreamer,jpakkane/gstreamer,ensonic/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,jpakkane/gstreamer,cablelabs/gstreamer,Lachann/gstreamer,StreamUtils/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,Lachann/gstreamer,shelsonjava/gstreamer,surround-io/gstreamer,lubosz/gstreamer,collects/gstreamer,cfoch/gstreamer,mparis/gstreamer,centricular/gstreamer,jpxiong/gstreamer,mparis/gstreamer,Lachann/gstreamer,jpakkane/gstreamer,krieger-od/gstreamer,Lachann/gstreamer,collects/gstreamer,StreamUtils/gstreamer,shelsonjava/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,justinjoy/gstreamer,krieger-od/gstreamer,cfoch/gstreamer,centricular/gstreamer,Lachann/gstreamer,surround-io/gstreamer,lubosz/gstreamer,centricular/gstreamer,krieger-od/gstreamer,StreamUtils/gstreamer,lovebug356/gstreamer,jpxiong/gstreamer,jpakkane/gstreamer,mparis/gstreamer,cablelabs/gstreamer,lovebug356/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,collects/gstreamer,lovebug356/gstreamer,cfoch/gstreamer,justinjoy/gstreamer,lubosz/gstreamer,krichter722/gstreamer,krichter722/gstreamer,ensonic/gstreamer,centricular/gstreamer,lubosz/gstreamer,mparis/gstreamer,cfoch/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,collects/gstreamer,surround-io/gstreamer,krieger-od/gstreamer,StreamUtils/gstreamer,cablelabs/gstreamer,surround-io/gstreamer,collects/gstreamer,ensonic/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,centricular/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,cfoch/gstreamer,ensonic/gstreamer,ensonic/gstreamer,lovebug356/gstreamer,krieger-od/gstreamer,justinjoy/gstreamer,surround-io/gstreamer