staging: sm750fb: remove unused smi_indent variable

The smi_indent variable is only declared, but never used. Remove it.
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/sm750.c

@@ -24,8 +24,6 @@
 
 #include "modedb.h"
 
-int smi_indent;
-
 /*
  * #ifdef __BIG_ENDIAN
  * ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf,

drivers/staging/sm750fb/sm750.h

@@ -6,8 +6,6 @@
 #define FB_ACCEL_SMI 0xab
 
 #define MHZ(x) ((x) * 1000000)
-extern int smi_indent;
-
 
 struct lynx_accel {
 	/* base virtual address of DPR registers */