gstpluginloader: do not leak the description string
gstpluginloader: do not leak the description string

The description string was changed to an inlined string a while back.
(But: no need to intern the const strings here, we just use the interning
to avoid allocating duplicates and make memory management easier,
since the strings will be around for the life-time of the app anyway).

https://bugzilla.gnome.org/show_bug.cgi?id=640071

justinjoy/gstreamer,lubosz/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,jpakkane/gstreamer,surround-io/gstreamer,magcius/gstreamer,lovebug356/gstreamer,ensonic/gstreamer,krieger-od/gstreamer,ensonic/gstreamer,mparis/gstreamer,krieger-od/gstreamer,ahmedammar/platform_external_gst_gstreamer,drothlis/gstreamer,jpakkane/gstreamer,Lachann/gstreamer,collects/gstreamer,lovebug356/gstreamer,centricular/gstreamer,surround-io/gstreamer,cfoch/gstreamer,mparis/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,Lachann/gstreamer,Distrotech/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,Distrotech/gstreamer,justinjoy/gstreamer,shelsonjava/gstreamer,lubosz/gstreamer,Distrotech/gstreamer,ensonic/gstreamer,krieger-od/gstreamer,centricular/gstreamer,krichter722/gstreamer,lovebug356/gstreamer,ylatuya/gstreamer,ylatuya/gstreamer,jpxiong/gstreamer,mparis/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,drothlis/gstreamer,shelsonjava/gstreamer,justinjoy/gstreamer,drothlis/gstreamer,ahmedammar/platform_external_gst_gstreamer,drothlis/gstreamer,ylatuya/gstreamer,StreamUtils/gstreamer,ahmedammar/platform_external_gst_gstreamer,cablelabs/gstreamer,collects/gstreamer,Lachann/gstreamer,krichter722/gstreamer,cfoch/gstreamer,centricular/gstreamer,krichter722/gstreamer,ahmedammar/platform_external_gst_gstreamer,cablelabs/gstreamer,mparis/gstreamer,lubosz/gstreamer,magcius/gstreamer,magcius/gstreamer,jpxiong/gstreamer,ensonic/gstreamer,magcius/gstreamer,lubosz/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,ahmedammar/platform_external_gst_gstreamer,magcius/gstreamer,Distrotech/gstreamer,collects/gstreamer,Lachann/gstreamer,drothlis/gstreamer,surround-io/gstreamer,shelsonjava/gstreamer,ylatuya/gstreamer,surround-io/gstreamer,cfoch/gstreamer,StreamUtils/gstreamer,Lachann/gstreamer,StreamUtils/gstreamer,collects/gstreamer,collects/gstreamer,ensonic/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,Distrotech/gstreamer,surround-io/gstreamer,mparis/gstreamer,cfoch/gstreamer,cfoch/gstreamer,ylatuya/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,cablelabs/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,krieger-od/gstreamer