Remove bats installation script and make target

While convenient, it can be problematic to rely on a Makefile to install
software.  This was found to be the case across multiple environments
WRT `bats`.  Fix this by removing the install script and target.  A
future commit will ensure the correct version of `bats` is present in
all CI environments where it's required.

Signed-off-by: Chris Evich <cevich@redhat.com>

Makefile

@@ -825,7 +825,7 @@ install.systemd:
 endif
 
 .PHONY: install.tools
-install.tools: .install.ginkgo .install.golangci-lint .install.bats ## Install needed tools
+install.tools: .install.ginkgo .install.golangci-lint ## Install needed tools
 	make -C test/tools
 
 .PHONY: .install.ginkgo
@@ -842,10 +842,6 @@ install.tools: .install.ginkgo .install.golangci-lint .install.bats ## Install n
 		make -C test/tools build/go-md2man ; \
 	fi
 
-.PHONY: .install.bats
-.install.bats:
-	VERSION=v1.1.0 ./hack/install_bats.sh
-
 .PHONY: .install.pre-commit
 .install.pre-commit:
 	if [ -z "$(PRE_COMMIT)" ]; then \

hack/install_bats.sh

@@ -1,22 +0,0 @@
-#!/usr/bin/env bash
-
-set -e
-
-die() { echo "${1:-No error message given} (from $(basename $0))"; exit 1; }
-
-if [[ "$(type -t bats)" != "" ]]; then
-	# bats is already installed.
-	exit 0
-fi
-
-buildDir=$(mktemp -d)
-git clone https://github.com/bats-core/bats-core $buildDir
-
-pushd $buildDir
-pwd
-git reset --hard ${VERSION}
-echo "Installing bats to /usr/local (requires root)"
-sudo ./install.sh /usr/local
-popd
-
-rm -rf $buildDir