Revert "Add git-repo project"

This reverts commit 471dd96a636c7d65c6155014516fb45be56f1298.

Reason for revert: We've moved git-repo to LUCI for CQ.

Change-Id: I4e31a284a96adc337a978cdb3083035e0154fea9

checkers.yaml

diff --git a/checkers.yaml b/checkers.yaml
index 82d4f1f..05c7d20 100644
--- a/checkers.yaml
+++ b/checkers.yaml
@@ -324,8 +324,3 @@
     repository: "java-prettify"
     name: "Zuul Check Pipeline"
     description: "Run Zuul jobs on new patchsets"
-
-  - uuid: "zuul-check:git-repo"
-    repository: "git-repo"
-    name: "Zuul Check Pipeline"
-    description: "Run Zuul jobs on new patchsets"

zuul/main.yaml

diff --git a/zuul/main.yaml b/zuul/main.yaml
index ff8803e..c6bcccf 100644
--- a/zuul/main.yaml
+++ b/zuul/main.yaml
@@ -31,7 +31,6 @@
           - plugins/webhooks
           - polymer-bridges
           # All of the rest of the projects, alphabetically sorted.
-          - git-repo
           - java-prettify
           - plugins/admin-console
           - plugins/autosubmitter