DOC: Remove travis doc build (#26856)

Author: datapythonista

.travis.yml

@@ -48,17 +48,10 @@ matrix:
       env:
         - JOB="3.6, slow" ENV_FILE="ci/deps/travis-36-slow.yaml" PATTERN="slow"
 
-    # In allow_failures
-    - dist: trusty
-      env:
-        - JOB="3.6, doc" ENV_FILE="environment.yml" DOC=true
     allow_failures:
       - dist: trusty
         env:
           - JOB="3.6, slow" ENV_FILE="ci/deps/travis-36-slow.yaml" PATTERN="slow"
-      - dist: trusty
-        env:
-          - JOB="3.6, doc" ENV_FILE="environment.yml" DOC=true
 
 before_install:
   - echo "before_install"
@@ -97,7 +90,6 @@ before_script:
 script:
   - echo "script start"
   - source activate pandas-dev
-  - ci/build_docs.sh
   - ci/run_tests.sh
 
 after_script:

azure-pipelines.yml

@@ -176,7 +176,6 @@ jobs:
       cd doc/build/html
       git remote add origin [email protected]:pandas-dev/pandas-dev.github.io.git
       git push -f origin master
-      exit 0  # FIXME this will leave the build green even if the step fails. To be removed when we are confident with this.
     displayName: 'Publish docs to GitHub pages'
     condition : |
       and(not(eq(variables['Build.Reason'], 'PullRequest')),