Bug 1483593 - [MIPS] Fix build failure after Bug 1481998. r=mgaudet

--HG--
extra : amend_source : 81cb93153eeef43c051582a5d777e2efbd83efa5

js/src/jit/mips32/Trampoline-mips32.cpp

@@ -667,7 +667,6 @@ bool
 JitRuntime::generateVMWrapper(JSContext* cx, MacroAssembler& masm, const VMFunction& f)
 {
     MOZ_ASSERT(functionWrappers_);
-    MOZ_ASSERT(functionWrappers_->initialized());
 
     uint32_t wrapperOffset = startTrampolineCode(masm);
 

js/src/jit/mips64/Trampoline-mips64.cpp

@@ -646,7 +646,6 @@ bool
 JitRuntime::generateVMWrapper(JSContext* cx, MacroAssembler& masm, const VMFunction& f)
 {
     MOZ_ASSERT(functionWrappers_);
-    MOZ_ASSERT(functionWrappers_->initialized());
 
     uint32_t wrapperOffset = startTrampolineCode(masm);