Remove openwrt modules from genrule denylist.

With the other change in this topic,
`OpenwrtControlServerProto_h` and
`OpenwrtControlServerProto_cc` both successfully build with sandboxing
on.

Test: build/soong/tests/genrule_sandbox_test.py --show-diff OpenwrtControlServerProto_h OpenwrtControlServerProto_cc
Test: GENRULE_SANDBOXING=true m OpenwrtControlServerProto_h OpenwrtControlServerProto_cc
Test: GENRULE_SANDBOXING=true m droid
Change-Id: Id56824ed935e1d16d2333e5a1aeac248cdfcaeb6
diff --git a/genrule/allowlists.go b/genrule/allowlists.go
index 012c59c..f82c209 100644
--- a/genrule/allowlists.go
+++ b/genrule/allowlists.go
@@ -97,8 +97,6 @@
 		"BlueberryFacadeGeneratedStub_cc",
 		"BlueberryFacadeGeneratedStub_h",
 		"BluetoothGeneratedDumpsysDataSchema_h",
-		"OpenwrtControlServerProto_cc",
-		"OpenwrtControlServerProto_h",
 		"c2hal_test_genc++",
 		"c2hal_test_genc++_headers",
 		"hidl2aidl_test_gen_aidl",