BLD: only build py38 on this branch

Author: tacaswell

.travis.yml

@@ -31,63 +31,19 @@ matrix:
       # Exclude the default Python 3.5 build
       - python: 3.5
   include:
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.7
-        - NP_BUILD_DEP=1.14.5
-        - NP_TEST_DEP=1.14.5
+
     - os: linux
       env:
         - MB_PYTHON_VERSION=3.8
         - NP_BUILD_DEP=1.14.5
         - NP_TEST_DEP=1.14.5
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.7
-        - NP_BUILD_DEP=1.14.5
-        - NP_TEST_DEP=1.14.5
-        - PLAT=i686
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.6
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - PLAT=i686
-    - os: osx
-      language: generic
-      env:
-        - MB_PYTHON_VERSION=3.7
-        - MB_PYTHON_OSX_VER=10.9
-        - NP_BUILD_DEP=1.14.5
-        - NP_TEST_DEP=1.14.5
     - os: osx
       language: generic
       env:
         - MB_PYTHON_VERSION=3.8
         - MB_PYTHON_OSX_VER=10.9
         - NP_BUILD_DEP=1.14.5
         - NP_TEST_DEP=1.14.5
-    - os: osx
-      language: generic
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - MB_PYTHON_OSX_VER=10.9
-  allow_failures:
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.7
-        - NP_BUILD_DEP=1.14.5
-        - NP_TEST_DEP=1.14.5
-        - PLAT=i686
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.6
-        - PLAT=i686
-    - os: linux
-      env:
-        - MB_PYTHON_VERSION=3.5
-        - PLAT=i686
 
 before_install:
     # See: