Drone: Delete migrated workflows (#106870)

* Drone: Remove verify_storybook pipeline

Already exists in GitHub Actions.

* Drone: Remove lint_backend pipeline

Already exists in GHA.

* Drone: Remove backend tests

These already exist in GitHub Actions.

* Drone: Remove shellcheck pipeline

* Drone: Remove unused images

* Drone: Remove lint_frontend pipeline

Already in GHA.

* Drone: Remove test_frontend pipeline

Already exists in GHA.

* Drone: Remove integration_benchmarks pipeline

This was last used in January. GHA does not have it, but it is relatively trivial to run locally.

scripts/drone/events/pr.star

@@ -3,10 +3,6 @@ This module returns all pipelines used in the event of a pull request.
 It also includes a function generating a PR trigger from a list of included and excluded paths.
 """
 
-load(
-    "scripts/drone/pipelines/benchmarks.star",
-    "integration_benchmarks",
-)
 load(
     "scripts/drone/pipelines/build.star",
     "build_e2e",
@@ -16,18 +12,6 @@ load(
     "docs_pipelines",
     "trigger_docs_pr",
 )
-load(
-    "scripts/drone/pipelines/integration_tests.star",
-    "integration_tests",
-)
-load(
-    "scripts/drone/pipelines/lint_backend.star",
-    "lint_backend_pipeline",
-)
-load(
-    "scripts/drone/pipelines/test_backend.star",
-    "test_backend",
-)
 load(
     "scripts/drone/pipelines/verify_drone.star",
     "verify_drone",
@@ -36,10 +20,6 @@ load(
     "scripts/drone/pipelines/verify_starlark.star",
     "verify_starlark",
 )
-load(
-    "scripts/drone/pipelines/verify_storybook.star",
-    "verify_storybook",
-)
 
 ver_mode = "pr"
 trigger = {
@@ -69,68 +49,8 @@ def pr_pipelines():
             ),
             ver_mode,
         ),
-        verify_storybook(
-            get_pr_trigger(
-                include_paths = ["packages/grafana-ui/**"],
-            ),
-            ver_mode,
-        ),
-        test_backend(
-            get_pr_trigger(
-                include_paths = [
-                    "Makefile",
-                    "pkg/**",
-                    "packaging/**",
-                    ".drone.yml",
-                    "conf/**",
-                    "go.sum",
-                    "go.mod",
-                    "public/app/plugins/**/plugin.json",
-                    "docs/sources/setup-grafana/configure-grafana/feature-toggles/**",
-                    "devenv/**",
-                    "apps/**",
-                ],
-            ),
-            ver_mode,
-        ),
-        lint_backend_pipeline(
-            get_pr_trigger(
-                include_paths = [
-                    ".golangci.toml",
-                    "Makefile",
-                    "pkg/**",
-                    "packaging/**",
-                    ".drone.yml",
-                    "conf/**",
-                    "go.sum",
-                    "go.mod",
-                    "public/app/plugins/**/plugin.json",
-                    "devenv/**",
-                    ".bingo/**",
-                    "apps/**",
-                ],
-            ),
-            ver_mode,
-        ),
         build_e2e(trigger, ver_mode),
-        integration_tests(
-            get_pr_trigger(
-                include_paths = [
-                    "pkg/**",
-                    "packaging/**",
-                    ".drone.yml",
-                    "conf/**",
-                    "go.sum",
-                    "go.mod",
-                    "public/app/plugins/**/plugin.json",
-                ],
-            ),
-            prefix = ver_mode,
-        ),
         docs_pipelines(ver_mode, trigger_docs_pr()),
-        integration_benchmarks(
-            prefix = ver_mode,
-        ),
     ]
 
 def get_pr_trigger(include_paths = None, exclude_paths = None):