Simplify a pair of Go range expressions

gopls was warning about this.

Change-Id: Ida8ff67bcb9ada253fb075a8a800cbefd432ca8f
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/56545
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/fipsmodule/bn/bn_test_to_fuzzer.go b/crypto/fipsmodule/bn/bn_test_to_fuzzer.go
index afe7d61..2915db5 100644
--- a/crypto/fipsmodule/bn/bn_test_to_fuzzer.go
+++ b/crypto/fipsmodule/bn/bn_test_to_fuzzer.go
@@ -140,7 +140,7 @@
 		}
 	}
 
-	for k, _ := range t.Values {
+	for k := range t.Values {
 		var found bool
 		for _, k2 := range keys {
 			if k == k2 {
diff --git a/crypto/fipsmodule/bn/check_bn_tests.go b/crypto/fipsmodule/bn/check_bn_tests.go
index 0c8493d..032b9e3 100644
--- a/crypto/fipsmodule/bn/check_bn_tests.go
+++ b/crypto/fipsmodule/bn/check_bn_tests.go
@@ -137,7 +137,7 @@
 		}
 	}
 
-	for k, _ := range t.Values {
+	for k := range t.Values {
 		var found bool
 		for _, k2 := range keys {
 			if k == k2 {