Revert of [turbofan] Support variable size argument popping in TF-generated functions

src/compiler/code-assembler.cc

Index: src/compiler/code-assembler.cc
diff --git a/src/compiler/code-assembler.cc b/src/compiler/code-assembler.cc
index a9173afa756111f441f570c65477bcbba58646fe..513225da04895791181a7a7eff31531e8c8395ec 100644
--- a/src/compiler/code-assembler.cc
+++ b/src/compiler/code-assembler.cc
@@ -178,10 +178,6 @@
 
 void CodeAssembler::Return(Node* value) {
   return raw_assembler_->Return(value);
-}
-
-void CodeAssembler::PopAndReturn(Node* pop, Node* value) {
-  return raw_assembler_->PopAndReturn(pop, value);
 }
 
 void CodeAssembler::DebugBreak() { raw_assembler_->DebugBreak(); }