Remove full kibana directory when collecting kibana files (#5695)

Previously the index pattern directory was not removed because it was created manually. Now that this is generated out of the fields.yml the complete fields.yml directory can be removed for cleanup.

This PR comes out of #5328 to make sure this change has not side effects. Needs to be merged before #5328.

auditbeat/Makefile

@@ -71,7 +71,7 @@ collect-docs: python-env
 # Collects all module dashboards
 .PHONY: kibana
 kibana:
-	@-rm -rf _meta/kibana/dashboard _meta/kibana/search _meta/kibana/visualization # Skip index-pattern
+	@-rm -rf _meta/kibana
 	@mkdir -p _meta/kibana
 	@-cp -pr module/*/_meta/kibana _meta/
 

filebeat/Makefile

@@ -15,7 +15,7 @@ before-build:
 # Collects all module dashboards
 .PHONY: kibana
 kibana:
-	@rm -rf _meta/kibana/dashboard _meta/kibana/search _meta/kibana/visualization # Skip index-pattern
+	@rm -rf _meta/kibana
 	@mkdir -p _meta/kibana
 	@-cp -r module/*/_meta/kibana _meta/
 

metricbeat/Makefile

@@ -20,8 +20,7 @@ include ${ES_BEATS}/libbeat/scripts/Makefile
 # Collects all module dashboards
 .PHONY: kibana
 kibana:
-	@# To not remove index-pattern as generated by update
-	@rm -rf _meta/kibana/dashboard _meta/kibana/search _meta/kibana/visualization
+	@rm -rf _meta/kibana
 	@mkdir -p _meta/kibana
 	@-cp -r module/*/_meta/kibana _meta/