[ALSA] Optimize for config without PROC_FS (seq and oss parts)

Modules: ALSA<-OSS emulation,ALSA sequencer,ALSA<-OSS sequencer

Optimize the code when compiled without CONFIG_PROC_FS (in seq and oss
emulation parts).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index 2a9c6b3..9c32fd2 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -2413,6 +2413,7 @@
 
 /*---------------------------------------------------------------------------*/
 
+#ifdef CONFIG_PROC_FS
 /*
  *  /proc interface
  */
@@ -2518,7 +2519,7 @@
 		snd_seq_client_unlock(client);
 	}
 }
-
+#endif /* CONFIG_PROC_FS */
 
 /*---------------------------------------------------------------------------*/