[compiler] Remove dead kMustNotHaveEagerFrame flag.

src/crankshaft/lithium.cc

Index: src/crankshaft/lithium.cc
diff --git a/src/crankshaft/lithium.cc b/src/crankshaft/lithium.cc
index 8cf3a3f0e6a982a497939e3caf08a48cdf8c6f11..3d4ada2067473e6b6d787fc64e045912427bed9e 100644
--- a/src/crankshaft/lithium.cc
+++ b/src/crankshaft/lithium.cc
@@ -468,8 +468,6 @@ Handle<Code> LChunk::Codegen() {
     code->set_is_crankshafted(true);
 
     CodeGenerator::PrintCode(code, info());
-    DCHECK(!(info()->GetMustNotHaveEagerFrame() &&
-             generator.NeedsEagerFrame()));
     return code;
   }
   assembler.AbortedCodeGeneration();