Remove Kaniko

Docker-in-Docker is working well enough, and it wasn't straightforward to get the certs injectect into Kaniko easily.

.drone.yml

@@ -1,14 +1,14 @@
----
-kind: pipeline
-name: kaniko
-
-steps:
-- name: build
-  image: banzaicloud/drone-kaniko
-  settings:
-    registry: registry.lan
-    repo: arm-build
-    tags: kaniko
+# ---
+# kind: pipeline
+# name: kaniko
+# 
+# steps:
+# - name: build
+#   image: banzaicloud/drone-kaniko
+#   settings:
+#     registry: registry.lan
+#     repo: arm-build
+#     tags: kaniko
 ---
 kind: pipeline
 name: docker