Remove NPY_PROMOTION_STATE=weak from the CI

The strict library should be explicitly working around all the bad promotion
issues from NumPy 1.26.

Author: asmeurer

.github/workflows/array-api-tests.yml

@@ -46,9 +46,6 @@ jobs:
     - name: Run the array API testsuite
       env:
         ARRAY_API_TESTS_MODULE: array_api_strict
-        # This enables the NEP 50 type promotion behavior (without it a lot of
-        # tests fail in numpy 1.26 on bad scalar type promotion behavior)
-        NPY_PROMOTION_STATE: weak
       run: |
         # Parameterizing this in the CI matrix is wasteful. Just do a loop here.
         for ARRAY_API_STRICT_API_VERSION in ${API_VERSIONS}; do