Remove invalid invalid tests

e5a92919 · flip1995 · 07e55c2a · 07e55c2a · 07e55c2a
Unverified Commit e5a92919 authored Oct 24, 2018 by flip1995
--- a/lexer/invalid_leading_zero.invalid.mj
+++ b/lexer/invalid_leading_zero.invalid.mj
-0123
--- a/lexer/invalid_numerical_token.invalid.mj
+++ b/lexer/invalid_numerical_token.invalid.mj
-123a