avformat/sccdec: Remove nonsense cast

In most contexts, arrays are automatically converted to a pointer
to their first element; taking the address of the array just yields
a pointer to an array of fixed-size arrays, which is not intended here.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavformat/sccdec.c

@@ -96,7 +96,7 @@ static int scc_read_header(AVFormatContext *s)
         if (sub)
             sub->duration = ts - sub->pts;
 
-        lline = (char *)&line;
+        lline  = line;
         lline += 12;
 
         for (i = 0; i < 4095; i += 3) {