Set input_shift properly

Profile 0 now supports 10 bit, therefore no longer means input_shift
at 0.

Change-Id: Idae429b88ee5c073ee6e939a88d569c5ffde2b0d
diff --git a/aomenc.c b/aomenc.c
index 375a8ae..e72bdee 100644
--- a/aomenc.c
+++ b/aomenc.c
@@ -2186,12 +2186,8 @@
         if (stream->config.use_16bit_internal) {
           use_16bit_internal = 1;
         }
-        if (stream->config.cfg.g_profile == 0) {
-          input_shift = 0;
-        } else {
-          input_shift = (int)stream->config.cfg.g_bit_depth -
-                        stream->config.cfg.g_input_bit_depth;
-        }
+        input_shift = (int)stream->config.cfg.g_bit_depth -
+                      stream->config.cfg.g_input_bit_depth;
       };
     }