staging:rtl8192u: Remove unused extern DM_RxPathSelTable - Style

The file r8192U_dm.h defines the structure DM_RxPathSelTable as being
external. The structure is however declared in r8192U_dm.c and only
used locally in that file.

As a result the external definition has been removed and the declaration
in r8192U_dm.c changed to being of type static.

This is a coding style change which should not impact runtime code
execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8192U_dm.c

@@ -41,7 +41,7 @@ struct dig dm_digtable;
 /* Store current software write register content for MAC PHY. */
 u8		dm_shadow[16][256] = { {0} };
 /* For Dynamic Rx Path Selection by Signal Strength */
-struct dynamic_rx_path_sel DM_RxPathSelTable;
+static struct dynamic_rx_path_sel DM_RxPathSelTable;
 
 /*------------------------Define global variable-----------------------------*/
 

drivers/staging/rtl8192u/r8192U_dm.h

@@ -154,7 +154,6 @@ typedef struct tag_Tx_Config_Cmd_Format {
 /*------------------------Export global variable----------------------------*/
 extern struct dig dm_digtable;
 extern u8 dm_shadow[16][256];
-extern struct dynamic_rx_path_sel DM_RxPathSelTable;
 /*------------------------Export global variable----------------------------*/