[-next] edac: i82975x: remove set but not used variable 'dtype'

[YueHaibing <yuehaibing@huawei.com>]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/edac/i82975x_edac.c:378:16: warning:
 variable ‘dtype’ set but not used [-Wunused-but-set-variable]

It never used since introduction in commit
084a4fccef39 ("edac: move dimm properties to struct dimm_info")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/edac/i82975x_edac.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/edac/i82975x_edac.c b/drivers/edac/i82975x_edac.c
index 892815e..ae0d8fa 100644
--- a/drivers/edac/i82975x_edac.c
+++ b/drivers/edac/i82975x_edac.c
@@ -375,7 +375,6 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
 	u32 cumul_size, nr_pages;
 	int index, chan;
 	struct dimm_info *dimm;
-	enum dev_type dtype;
 
 	last_cumul_size = 0;
 
@@ -413,7 +412,6 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
 		 *   [0-7] for single-channel; i.e. csrow->nr_channels = 1
 		 *   [0-3] for dual-channel; i.e. csrow->nr_channels = 2
 		 */
-		dtype = i82975x_dram_type(mch_window, index);
 		for (chan = 0; chan < csrow->nr_channels; chan++) {
 			dimm = mci->csrows[index]->channels[chan]->dimm;