Remove not working build hooks

Dockerfile

@@ -59,8 +59,6 @@ RUN /usr/bin/caddy -version
 #
 FROM scratch
 
-LABEL org.label-schema.build-date=$BUILD_DATE
-LABEL org.label-schema.vcs-ref=$VCS_REF
 LABEL org.label-schema.vcs-url="https://github.com/productionwentdown/caddy"
 LABEL org.label-schema.version=${version}
 LABEL org.label-schema.schema-version="1.0"

hooks/build

@@ -1,6 +0,0 @@
-#!/bin/bash
-
-docker build \
-    --build-arg VCS_REF=`git rev-parse — short HEAD` \
-    --build-arg BUILD_DATE=`date -u +”%Y-%m-%dT%H:%M:%SZ”` \
-    -t $IMAGE_NAME .