C++: Remove gcc flags.

RELNOTES:Added -incompatible_do_not_split_linking_cmdline flag. See #7670
PiperOrigin-RevId: 237794079
diff --git a/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java b/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
index 563c864..a1bac4b 100644
--- a/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
+++ b/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
@@ -160,7 +160,8 @@
         "--incompatible_require_feature_configuration_for_pic=" + rand.nextBoolean(),
         "--incompatible_strict_argument_ordering=" + rand.nextBoolean(),
         "--incompatible_use_toolchain_providers_in_java_common=" + rand.nextBoolean(),
-        "--internal_skylark_flag_test_canary=" + rand.nextBoolean());
+        "--internal_skylark_flag_test_canary=" + rand.nextBoolean(),
+        "--incompatible_do_not_split_linking_cmdline=" + rand.nextBoolean());
   }
 
   /**
@@ -209,6 +210,7 @@
         .incompatibleStricArgumentOrdering(rand.nextBoolean())
         .incompatibleUseToolchainProvidersInJavaCommon(rand.nextBoolean())
         .internalSkylarkFlagTestCanary(rand.nextBoolean())
+        .incompatibleDoNotSplitLinkingCmdline(rand.nextBoolean())
         .build();
   }
 
diff --git a/src/test/java/com/google/devtools/build/lib/packages/util/MockCcSupport.java b/src/test/java/com/google/devtools/build/lib/packages/util/MockCcSupport.java
index 6db2d7d..b4adb26 100644
--- a/src/test/java/com/google/devtools/build/lib/packages/util/MockCcSupport.java
+++ b/src/test/java/com/google/devtools/build/lib/packages/util/MockCcSupport.java
@@ -63,6 +63,9 @@
   public static final String DYNAMIC_LINKING_MODE_FEATURE =
       "feature { name: '" + CppRuleClasses.DYNAMIC_LINKING_MODE + "'}";
 
+  public static final String DO_NOT_SPLIT_LINKING_CMDLINE_FEATURE =
+      "feature { name: '" + CppRuleClasses.DO_NOT_SPLIT_LINKING_CMDLINE + "' enabled: true}";
+
   public static final String STARLARK_DYNAMIC_LINKING_MODE_FEATURE =
       "[feature(name = '" + CppRuleClasses.DYNAMIC_LINKING_MODE + "')]";