[clr-interp] Array allocation exception has incorrect exception (#120981)

- The actual helper throws the right exception (which is
OverflowException)
- Don't add an incorrect check

Author: davidwrighton

src/coreclr/vm/interpexec.cpp

@@ -2972,8 +2972,6 @@ void InterpExecMethod(InterpreterFrame *pInterpreterFrame, InterpMethodContextFr
                 case INTOP_NEWARR:
                 {
                     int32_t length = LOCAL_VAR(ip[2], int32_t);
-                    if (length < 0)
-                        COMPlusThrow(kArgumentOutOfRangeException);
 
                     MethodTable* arrayClsHnd = (MethodTable*)pMethod->pDataItems[ip[3]];
                     HELPER_FTN_NEWARR helper = GetPossiblyIndirectHelper<HELPER_FTN_NEWARR>(pMethod, ip[4]);
@@ -2987,8 +2985,6 @@ void InterpExecMethod(InterpreterFrame *pInterpreterFrame, InterpMethodContextFr
                 case INTOP_NEWARR_GENERIC:
                 {
                     int32_t length = LOCAL_VAR(ip[3], int32_t);
-                    if (length < 0)
-                        COMPlusThrow(kArgumentOutOfRangeException);
 
                     InterpGenericLookup *pLookup = (InterpGenericLookup*)&pMethod->pDataItems[ip[5]];
                     MethodTable *arrayClsHnd = (MethodTable*)DoGenericLookup(LOCAL_VAR(ip[2], void*), pLookup);