Cleanup: Remove const for params passed by value

BUG=aomedia:448

Change-Id: Ieff977fca8a5033ddef2871a194870f59301ad8f
diff --git a/av1/encoder/encodemb.h b/av1/encoder/encodemb.h
index fe54690..73fde1d 100644
--- a/av1/encoder/encodemb.h
+++ b/av1/encoder/encodemb.h
@@ -43,8 +43,8 @@
   AV1_XFORM_QUANT_TYPES,
 } AV1_XFORM_QUANT;
 
-void av1_encode_sb(AV1_COMMON *cm, MACROBLOCK *x, BLOCK_SIZE bsize,
-                   const int mi_row, const int mi_col);
+void av1_encode_sb(AV1_COMMON *cm, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row,
+                   int mi_col);
 #if CONFIG_SUPERTX
 void av1_encode_sb_supertx(AV1_COMMON *cm, MACROBLOCK *x, BLOCK_SIZE bsize);
 #endif  // CONFIG_SUPERTX
@@ -69,8 +69,8 @@
 
 void av1_encode_intra_block_plane(AV1_COMMON *cm, MACROBLOCK *x,
                                   BLOCK_SIZE bsize, int plane,
-                                  int enable_optimize_b, const int mi_row,
-                                  const int mi_col);
+                                  int enable_optimize_b, int mi_row,
+                                  int mi_col);
 
 #if CONFIG_PVQ
 PVQ_SKIP_TYPE av1_pvq_encode_helper(MACROBLOCK *x, tran_low_t *const coeff,