Remove unused reviewdb mode

Since change Ia3e030fa700 reviewdb mode is not used any more and can be
removed.

Change-Id: Ia2c023b59d2c810601cbf0a1a512ae3c8a3ae743
diff --git a/jenkins/gerrit-bazel-verifier-test.sh b/jenkins/gerrit-bazel-verifier-test.sh
index 3d8f0aa..47fe4da 100755
--- a/jenkins/gerrit-bazel-verifier-test.sh
+++ b/jenkins/gerrit-bazel-verifier-test.sh
@@ -39,12 +39,6 @@
 java -fullversion
 bazelisk version
 
-if [[ "$MODE" == *"reviewdb"* ]]
-then
-  GERRIT_NOTEDB="--test_env=GERRIT_NOTEDB=OFF"
-  bazelisk test $GERRIT_NOTEDB $BAZEL_OPTS //...
-fi
-
 if [[ "$MODE" == *"notedb"* ]]
 then
   GERRIT_NOTEDB="--test_env=GERRIT_NOTEDB=ON"
diff --git a/jenkins/gerrit-verifier.yaml b/jenkins/gerrit-verifier.yaml
index 472e1b8..fd683e0 100644
--- a/jenkins/gerrit-verifier.yaml
+++ b/jenkins/gerrit-verifier.yaml
@@ -61,7 +61,6 @@
       - choice:
           name: MODE
           choices:
-            - reviewdb
             - notedb
             - polygerrit
             - rbe
diff --git a/vars/gerritPipeline.groovy b/vars/gerritPipeline.groovy
index c067393..e0ab611 100644
--- a/vars/gerritPipeline.groovy
+++ b/vars/gerritPipeline.groovy
@@ -165,7 +165,7 @@
     (env.GERRIT_BRANCH == "master" || env.GERRIT_BRANCH ==~ /stable-3.[5-6]/) ? "Gerrit-verifier-chrome-latest" : "Gerrit-verifier-chrome-69"
 }
 
-def prepareBuildsForMode(buildName, mode="reviewdb", retryTimes = 1) {
+def prepareBuildsForMode(buildName, mode="notedb", retryTimes = 1) {
     return {
         stage("${buildName}/${mode}") {
             def agentBuild = null