Remove unit tests for python 2.7 since that version of pyhton is dead,

and the unit test servers don't even support it anymore.

.travis.yml

@@ -92,14 +92,6 @@ matrix:
       script:
         - dlib/travis/build-and-test.sh
 
-    ###################
-    - language: python
-      python: 2.7
-      env:
-        - VARIANT=python-api
-      script:
-        - dlib/travis/build-and-test.sh
-
     ###################
     - language: python
       python: 3.5

dlib/appveyor/python.yml

@@ -5,8 +5,6 @@ environment:
     - PATH: C:\Python36-x64;%PATH%
     - PATH: C:\Python37;%PATH%
     - PATH: C:\Python37-x64;%PATH%
-    - PATH: C:\Python27;%PATH%
-    - PATH: C:\Python27-x64;%PATH%
 
 
 build_script: