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/rrc-patch.star

@@ -2,26 +2,6 @@
 This module returns all the pipelines used in the event of pushes to an RRC branch.
 """
 
-load(
-    "scripts/drone/pipelines/integration_tests.star",
-    "integration_tests",
-)
-load(
-    "scripts/drone/pipelines/lint_backend.star",
-    "lint_backend_pipeline",
-)
-load(
-    "scripts/drone/pipelines/lint_frontend.star",
-    "lint_frontend_pipeline",
-)
-load(
-    "scripts/drone/pipelines/test_backend.star",
-    "test_backend",
-)
-load(
-    "scripts/drone/pipelines/test_frontend.star",
-    "test_frontend",
-)
 load(
     "scripts/drone/steps/lib.star",
     "enterprise_downstream_step",
@@ -48,11 +28,6 @@ trigger = {
 
 def rrc_patch_pipelines():
     pipelines = [
-        test_frontend(trigger, ver_mode),
-        lint_frontend_pipeline(trigger, ver_mode),
-        test_backend(trigger, ver_mode),
-        lint_backend_pipeline(trigger, ver_mode),
-        integration_tests(trigger, prefix = ver_mode, ver_mode = ver_mode),
         rrc_enterprise_downstream_pipeline(trigger = trigger),
     ]
 
@@ -68,6 +43,5 @@ def rrc_enterprise_downstream_pipeline(trigger):
         name = "rrc-trigger-downstream",
         trigger = trigger,
         steps = steps,
-        depends_on = ["rrc-integration-tests"],
         environment = environment,
     )