chore: cleanup experimental flag (#4818)

.github/workflows/core-unit-sqlite-test.yaml

@@ -50,7 +50,7 @@ jobs:
               {"test_suite": "test_sources.py"},
               {"test_suite": "test_managers.py"},
               {"test_suite": "sdk/"},
-              {"test_suite": "mcp_tests/", "use_experimental": true},
+              {"test_suite": "mcp_tests/"},
               {"test_suite": "test_timezone_formatting.py"},
               {"test_suite": "test_plugins.py"},
               {"test_suite": "test_embeddings.py"},

.github/workflows/core-unit-test.yml

@@ -51,7 +51,7 @@ jobs:
               {"test_suite": "test_providers.py"},
               {"test_suite": "test_sources.py"},
               {"test_suite": "sdk/"},
-              {"test_suite": "mcp_tests/", "use_experimental": true},
+              {"test_suite": "mcp_tests/"},
               {"test_suite": "test_timezone_formatting.py"},
               {"test_suite": "test_plugins.py"},
               {"test_suite": "test_embeddings.py"},

.github/workflows/model-sweep.yaml

@@ -92,7 +92,6 @@ jobs:
           GOOGLE_CLOUD_PROJECT: ${{ secrets.GOOGLE_CLOUD_PROJECT}}
           GOOGLE_CLOUD_LOCATION: ${{ secrets.GOOGLE_CLOUD_LOCATION}}
           DEEPSEEK_API_KEY: ${{ env.DEEPSEEK_API_KEY}}
-          LETTA_USE_EXPERIMENTAL: 1
         run: |
           uv run pytest \
             -s -vv \