remove test code

Makefile

@@ -28,13 +28,6 @@ PG_VERSION=13
 # add all files except those under web/src/build and web/src/cypress
 NODE_DEPS=.pnp.cjs .yarnrc.yml .gitrev $(shell find web/src -path web/src/build -prune -o -path web/src/cypress -prune -o -type f -print)
 
-# add .git/HEAD if it exists to NODE_DEPS
-# this is used to trigger a rebuild when committing changes to git
-# since the git commit hash is used in the build as the version
-ifneq ("$(wildcard .git/HEAD)","")
-NODE_DEPS += .git/HEAD
-endif
-
 # Use sha256sum on linux and shasum -a 256 on mac
 SHA_CMD := $(shell if [ -x "$(shell command -v sha256sum 2>/dev/null)" ]; then echo "sha256sum"; else echo "shasum -a 256"; fi)