[PATCH -next] staging: comedi: tests: ni_routes_test: Remove unused variable 'olddevroutes'

[Qiheng Lin]

GCC reports the following warning with W=1:

drivers/staging/comedi/drivers/tests/ni_routes_test.c:215:45: warning:
 variable 'olddevroutes' set but not used [-Wunused-but-set-variable]
  215 |  const struct ni_device_routes *devroutes, *olddevroutes;
      |                                             ^~~~~~~~~~~~

This variable is not used in function , this commit
remove it to fix the warning.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Qiheng Lin <linqiheng@xxxxxxxxxx>
---
 .../staging/comedi/drivers/tests/ni_routes_test.c  | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/tests/ni_routes_test.c b/drivers/staging/comedi/drivers/tests/ni_routes_test.c
index 48e4a7a9cd14..652362486ff6 100644
--- a/drivers/staging/comedi/drivers/tests/ni_routes_test.c
+++ b/drivers/staging/comedi/drivers/tests/ni_routes_test.c
@@ -212,7 +212,7 @@ static bool route_set_sources_in_order(const struct ni_device_routes *devroutes)
 
 static void test_ni_assign_device_routes(void)
 {
-	const struct ni_device_routes *devroutes, *olddevroutes;
+	const struct ni_device_routes *devroutes;
 	const u8 *table, *oldtable;
 
 	init_pci_6070e();
@@ -248,7 +248,6 @@ static void test_ni_assign_device_routes(void)
 		 RVI(table, B(NI_AI_ConvertClock), B(NI_PFI(2))) == V(NI_PFI_OUTPUT_AI_CONVERT),
 		 "pci-6070e finds e-series route_values table\n");
 
-	olddevroutes = devroutes;
 	oldtable = table;
 	init_pci_6220();
 	ni_assign_device_routes(ni_mseries, pci_6220, NULL,