soc/intel: Drop unused GPIO_NUM_GROUPS macro

This macro is unused and its value is often wrong. Drop it.

Change-Id: Id3cfaa4d2eef49eddc02833efbe14e0c5c816263
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51662
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/skylake/include/soc/gpio_pch_h_defs.h

@@ -19,7 +19,6 @@
 #define GPP_H			7
 #define GPP_I			8
 #define GPD			9
-#define GPIO_NUM_GROUPS		10
 #define GPIO_MAX_NUM_PER_GROUP	24
 
 #define GPIO_DWx_COUNT		2 /* DW0 and DW1 */

src/soc/intel/skylake/include/soc/gpio_soc_defs.h

@@ -17,7 +17,6 @@
 #define GPP_F			5
 #define GPP_G			6
 #define GPD			7
-#define GPIO_NUM_GROUPS		8
 #define GPIO_MAX_NUM_PER_GROUP	24
 
 #define GPIO_DWx_COUNT		2 /* DW0 and DW1 */