MIPS: Remove ASSERT since there are tons of different ASSIGN variants

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index a44593c9488c899f57d8b95faf1c2563731b2c23..a4ca21d089f467eebb3587ecb0883f3f83f077ef 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -2496,8 +2496,6 @@ void FullCodeGenerator::EmitVariableAssignment(Variable* var, Token::Value op) {
 
   } else if (!var->is_const_mode() || op == Token::INIT_CONST) {
     if (var->IsLookupSlot()) {
-      ASSERT(op == Token::ASSIGN || op == Token::INIT_VAR ||
-             op == Token::ASSIGN_ADD);
       // Assignment to var.
       __ li(a1, Operand(var->name()));
       __ li(a0, Operand(Smi::FromInt(strict_mode())));