Makefile: Remove security scan targets

This commit rips out the security scan related
Makefile targets. The docs/cmd/generate_docs.go file
no longer exists in the repository after #10576 merged
to main.

Additionally, the scan-version target no longer works
as the github.com/solo-io/go-utils/securityscanutils/cli
tool hangs when scanning the kgateway images.

Signed-off-by: timflannagan <timflannagan@gmail.com>

Makefile

@@ -713,37 +713,6 @@ conformance-%: $(TEST_ASSET_DIR)/conformance/conformance_test.go
 	go test -mod=mod -ldflags='$(LDFLAGS)' -tags conformance -test.v $(TEST_ASSET_DIR)/conformance/... -args $(CONFORMANCE_ARGS) \
 	-run-test=$*
 
-#----------------------------------------------------------------------------------
-# Security Scan
-#----------------------------------------------------------------------------------
-# Locally run the Trivy security scan to generate result report as markdown
-
-SCAN_DIR ?= $(OUTPUT_DIR)/scans
-SCAN_BUCKET ?= solo-gloo-security-scans
-# The minimum version to scan with trivy
-# ON_LTS_UPDATE - bump version
-MIN_SCANNED_VERSION ?= v1.15.0
-
-.PHONY: run-security-scans
-run-security-scan:
-	MIN_SCANNED_VERSION=$(MIN_SCANNED_VERSION) GO111MODULE=on go run docs/cmd/generate_docs.go run-security-scan -r gloo -a github-issue-latest
-	MIN_SCANNED_VERSION=$(MIN_SCANNED_VERSION) GO111MODULE=on go run docs/cmd/generate_docs.go run-security-scan -r glooe -a github-issue-latest
-
-.PHONY: publish-security-scan
-publish-security-scan:
-	# These directories are generated by the generated_docs.go script. They contain scan results for each image for each version
-	# of gloo and gloo enterprise. Do NOT change these directories without changing the corresponding output directories in
-	# generate_docs.go
-	gsutil cp -r $(SCAN_DIR)/gloo/markdown_results/** gs://$(SCAN_BUCKET)/gloo
-	gsutil cp -r $(SCAN_DIR)/solo-projects/markdown_results/** gs://$(SCAN_BUCKET)/solo-projects
-
-.PHONY: scan-version
-scan-version: ## Scan all Gloo images with the tag matching {VERSION} env variable
-	PATH=$(DEPSGOBIN):$$PATH GO111MODULE=on go run github.com/solo-io/go-utils/securityscanutils/cli scan-version -v \
-		-r $(IMAGE_REGISTRY)\
-		-t $(VERSION)\
-		--images kgateway,envoy-wrapper,sds
-
 #----------------------------------------------------------------------------------
 # Third Party License Management
 #----------------------------------------------------------------------------------