Move in-repo test jobs into zuul-tests.d

These jobs are for testing this repo and should normally only be
included by the OpenDev Zuul for gating.

Change-Id: I7bf940edce1135d855d7f66605db2e856bd7177d

doc/source/index.rst

@@ -8,7 +8,6 @@
    jobs
    roles
    docker-image
-   test-jobs
 
 Indices and tables
 ==================

doc/source/test-jobs.rst

@@ -1,12 +0,0 @@
-Zuul-Jobs Tests
-===============
-
-These are jobs which are used for testing changes to roles in this
-repository.  They are not meant for general consumption and are only
-expected to be run by the OpenDev Zuul.  Generally you can ignore
-these unless you are making changes to the roles in this repository.
-
-.. zuul:autojob:: zuul-jobs-test-install-nodejs
-.. zuul:autojob:: zuul-jobs-test-install-pdk-dependencies
-.. zuul:autojob:: zuul-jobs-test-registry
-.. zuul:autojob:: zuul-jobs-test-upload-git-mirror