test: drop split_exp xfails now XPASS post-#716

#716 (merged 2026-04-24) removed sip_tpv from shapepipe, which was the
transitive source of split_exp.py's pkg_resources import chain. On the
post-merge develop container, both split_exp entries now import cleanly:

- shapepipe.modules.split_exp_package.split_exp
- shapepipe.modules.split_exp_runner

Also dropped the matching runner_metadata entry.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: cailmdaley

tests/unit/test_imports.py

@@ -45,10 +45,6 @@
         "numba not in develop Docker image",
     "shapepipe.modules.ngmix_runner":
         "numba not in develop Docker image (transitive)",
-    "shapepipe.modules.split_exp_package.split_exp":
-        "uses deprecated pkg_resources (setuptools>=68)",
-    "shapepipe.modules.split_exp_runner":
-        "uses deprecated pkg_resources (transitive)",
     "shapepipe.modules.uncompress_fits_package.uncompress_fits":
         "fitsio not installed (declared as optional extra)",
     "shapepipe.modules.uncompress_fits_runner":

tests/unit/test_runner_metadata.py

@@ -44,8 +44,6 @@
         "astroquery not in develop Docker image",
     "shapepipe.modules.ngmix_runner":
         "numba not in develop Docker image",
-    "shapepipe.modules.split_exp_runner":
-        "uses deprecated pkg_resources (setuptools>=68)",
     "shapepipe.modules.uncompress_fits_runner":
         "fitsio not installed (declared as optional extra)",
 }