[turbofan] Remove the JSContextRelaxation reducer.

test/unittests/compiler/liveness-analyzer-unittest.cc

Index: test/unittests/compiler/liveness-analyzer-unittest.cc
diff --git a/test/unittests/compiler/liveness-analyzer-unittest.cc b/test/unittests/compiler/liveness-analyzer-unittest.cc
index b77830aa5e173b8e5684f20b43ae4d6c5a2d4bb1..efc823dba6d9f8c8717ca8fa31bb09ef633b383b 100644
--- a/test/unittests/compiler/liveness-analyzer-unittest.cc
+++ b/test/unittests/compiler/liveness-analyzer-unittest.cc
@@ -61,7 +61,7 @@ class LivenessAnalysisTest : public GraphTest {
     const FrameStateFunctionInfo* state_info =
         common()->CreateFrameStateFunctionInfo(
             FrameStateType::kJavaScriptFunction, 0, locals_count_,
-            Handle<SharedFunctionInfo>(), CALL_MAINTAINS_NATIVE_CONTEXT);
+            Handle<SharedFunctionInfo>());
 
     const Operator* op = common()->FrameState(
         BailoutId(ast_num), OutputFrameStateCombine::Ignore(), state_info);