Move toggle annotation invocation to a Jenkins job (#25484)

There wasn't any reason for this to be in edx-platform in particular.

See https://github.com/edx/jenkins-job-dsl-internal/pull/444 -- we can
run `make requirements; pip install -e .` in a code-annotations
virtualenv and point it at each IDA in turn to generate reports for all of them.

ARCHBOM-1583

scripts/generate-feature-toggle-annotation-report.sh

@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-
-# generate-feature-toggle-annotation-report.sh
-
-# Generate a code annotations report for feature toggles in the platform.
-# This script is part of the feature toggle generator tool.
-
-pip install -r requirements/edx/paver.txt -r requirements/edx/testing.txt
-rm -Rf reports/*
-code_annotations static_find_annotations --config_file=../$CODE_ANNOTATION_CONFIG_PATH
-mkdir -p ../$SCRIPT_OUTPUT_PATH
-cp reports/* ../$SCRIPT_OUTPUT_PATH/lms-annotations.yml