Discard changes to core/dbt/context/base.py

core/dbt/context/base.py

@@ -314,13 +314,6 @@ def env_var(self, var: str, default: Optional[str] = None) -> str:
         env = get_invocation_context().env
         if var in env:
             return_value = env[var]
-        elif os.name == "nt":
-            # Windows env vars are not case-sensitive
-            # So if there isn't an exact match, try a case-insensitive match
-            for key in env:
-                if var.casefold() == key.casefold():
-                    return_value = env[key]
-                    break
         elif default is not None:
             return_value = default