remove spurious comments

These don't appear to make any sense given their context. The
commit log also does not reveal anything.

Discovered due to spurious clang-format indenting:
https://bugs.llvm.org/show_bug.cgi?id=35930

Change-Id: I732a66056ba4c05e3e132a2f236fe10f7a282900

vp8/encoder/onyx_if.c

@@ -2862,7 +2862,6 @@ void write_cx_frame_to_file(YV12_BUFFER_CONFIG *frame, int this_frame)
     fclose(yframe);
 }
 #endif
-/* return of 0 means drop frame */
 
 #if !CONFIG_REALTIME_ONLY
 /* Function to test for conditions that indeicate we should loop
@@ -4782,8 +4781,6 @@ static void encode_frame_to_data_rate(VP8_COMP *cpi, size_t *size,
     cpi->temporal_pattern_counter++;
   }
 
-/* reset to normal state now that we are done. */
-
 #if 0
     {
         char filename[512];