[turbofan] Remove the function reload hack for OSR.

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 67a6ef1d115fe64cb4c7e41ab0ef649887aacc7d..05d53af12b59b8c1579b62dc6bdc16810ff26d51 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -1527,8 +1527,6 @@ void CodeGenerator::AssemblePrologue() {
     // remaining stack slots.
     if (FLAG_code_comments) __ RecordComment("-- OSR entrypoint --");
     osr_pc_offset_ = __ pc_offset();
-    // TODO(titzer): cannot address target function == local #-1
-    __ lw(a1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
     stack_shrink_slots -= OsrHelper(info()).UnoptimizedFrameSlots();
   }