rm gerrit tasks. Have no way to test -> no point in supporting.

tasks/j7s-gerrit-clone.yaml

@@ -1,23 +0,0 @@
-apiVersion: tekton.dev/v1beta1
-kind: Task
-metadata:
-  name: j7s-gerrit-clone
-spec:
-  workspaces:
-  - name: output
-  - name: ssh-directory
-  params:
-  - name: url
-  - name: commit
-  steps:
-  - image: 192.168.1.128:8443/gitssh:latest
-    script: |
-      set -x
-      cp -r $(workspaces.ssh-directory.path) ~/.ssh
-      chmod 700 ~/.ssh
-      chmod -R 400 ~/.ssh/*
-      git clone $(params.url) $(workspaces.output.path)
-      cd $(workspaces.output.path)
-      git fetch origin $(params.commit)
-      git checkout -f $(params.commit) -b pr-check
-      git rebase origin/main

tasks/j7s-gerrit-notify.yaml

@@ -1,36 +0,0 @@
-apiVersion: tekton.dev/v1beta1
-kind: Task
-metadata:
-  name: j7s-gerrit-notify
-spec:
-  workspaces:
-  - name: ssh-directory
-  params:
-  - name: commit
-  - name: build-id
-  - name: status
-  - name: feedback_url
-  - name: feedback_port
-  steps:
-  - image: 192.168.1.128:8443/gitssh:latest
-    script: |
-      #!/usr/bin/env bash
-      set -ex
-      cp -r $(workspaces.ssh-directory.path) ~/.ssh
-      chmod 700 ~/.ssh
-      chmod -R 400 ~/.ssh/*
-
-      case "$(params.status)" in
-         "Succeeded" | "Completed")
-            ssh -p $(params.feedback_port) $(params.feedback_url) gerrit review \
-                -m '"Build succeeded. ID: $(params.build-id)"' \
-                --verified +1 \
-                $(params.commit)
-           ;;
-         "Failed" | "None")
-            ssh -p $(params.feedback_port) $(params.feedback_url) gerrit review \
-                -m '"Build failed. ID: $(params.build-id)"' \
-                --verified -1 \
-                $(params.commit)
-           ;;
-      esac