Remove allow failures

Author: vshepard

.travis.yml

@@ -29,8 +29,3 @@ env:
     - TEST_PLATFORM=std PYTHON_VERSION=3 PG_VERSION=10
     - TEST_PLATFORM=std.all PYTHON_VERSION=3 PG_VERSION=17
     - TEST_PLATFORM=ubuntu-24_04 PYTHON_VERSION=3 PG_VERSION=17
-
-matrix:
-    allow_failures:
-        - env: TEST_PLATFORM=std PYTHON_VERSION=3 PG_VERSION=11
-        - env: TEST_PLATFORM=std PYTHON_VERSION=3 PG_VERSION=10