Remove the *legacy* Elasticsearch template (elastic#629)

CHANGELOG.next.md

@@ -39,6 +39,9 @@ Thanks, you're awesome :-) -->
 
 * Changed the order and column names in the csv. #621
 * Removed the file `schema.json` and the code generating it. #627
+* Removed the legacy Elasticsearch template. #629
+ * Note: The *good* Elasticsearch templates are available in directory
+ `generated/elasticsearch`, this PR only removes an obsolete file.
 
 #### Bugfixes
 

Makefile

@@ -30,7 +30,7 @@ check-license-headers:
 # Clean deletes all temporary and generated content.
 .PHONY: clean
 clean:
- rm -rf build generated/legacy/template.json
+ rm -rf build
  # Clean all markdown files for use-cases
  find ./use-cases -type f -name '*.md' -not -name 'README.md' -print0 | xargs -0 rm --
 
@@ -55,7 +55,7 @@ fmt: ve
 
 # Alias to generate everything.
 .PHONY: generate
-generate: template legacy_use_cases codegen generator
+generate: legacy_use_cases codegen generator
 
 # Run the new generator
 .PHONY: generator
@@ -98,15 +98,6 @@ reload_docs: generator docs
 setup: ve
  cd scripts && $(FORCE_GO_MODULES) go mod download
 
-# Build an Elasticsearch index template.
-.PHONY: template
-template:
- cd scripts \
- && $(FORCE_GO_MODULES) go run cmd/template/template.go \
- -version=$(VERSION) \
- -schema=../schemas \
- > ../generated/legacy/template.json
-
 # Run the ECS tests
 .PHONY: test
 test: