staging: vt6655: Delete unused typedef enum _chip_type

Delete unused typedef enum _chip_type.
Signed-off-by: Nishka Dasgupta <nishka.dasgupta_ug18@ashoka.edu.in>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/device_cfg.h

@@ -45,8 +45,4 @@
 
 #define PKT_BUF_SZ          2390
 
-typedef enum  _chip_type {
-	VT3253 = 1
-} CHIP_TYPE, *PCHIP_TYPE;
-
 #endif