Remove calculate_images_to_build function

[SimonBaeumer]

Summary

Removing calculate_images_to_build function. This function was never used in the intended implementation. exclude was never used for pipeline.py in CI & scirpts, only include was used.
--include was only ever called once, it never used action=append. To simplify the implementation just the key of the image to build is returned.

Proof of Work

• CI Pipline
• rg search locally and check usages for --exclude and --include

❯ rg pipeline.py lib/sonar/builders/docker.py 195: # - move the logic out of sonar to pipeline.py to all the places where we build context images inventories/daily.yaml 2: # these variables are configured from the outside, in pipeline.py::image_config scripts/dev/contexts/evg-private-context 98:# var used in pipeline.py to determine if we're running on EVG host Makefile 72:	@ scripts/evergreen/run_python.sh pipeline.py --include database 75:	@ scripts/evergreen/run_python.sh pipeline.py --include readiness-probe 78:	@ scripts/evergreen/run_python.sh pipeline.py --include upgrade-hook 87:	@ scripts/evergreen/run_python.sh pipeline.py --include appdb 151:	@ scripts/evergreen/run_python.sh pipeline.py --include operator-quick 158:	scripts/evergreen/run_python.sh pipeline.py --include test; \ 163:	scripts/evergreen/run_python.sh pipeline.py --include mco-test; \ 178:	@ scripts/evergreen/run_python.sh pipeline.py --include init-database 181:	@ scripts/evergreen/run_python.sh pipeline.py --include init-appdb 186:	@ scripts/evergreen/run_python.sh pipeline.py --include agent --all-agents --parallel --parallel-factor 6 189:	@ scripts/evergreen/run_python.sh pipeline.py --include agent --parallel-factor 1 192:	@ scripts/evergreen/run_python.sh pipeline.py --include operator 195:	@ scripts/evergreen/run_python.sh pipeline.py --include init-ops-manager 198:	@ scripts/evergreen/run_python.sh pipeline.py --include ops-manager scripts/dev/contexts/local-defaults-context 58:# TO ensure we don't release by accident via pipeline.py docker/mongodb-agent/Dockerfile.builder 1:# the init database image gets supplied by pipeline.py and corresponds to the operator version we want to release 

[Julien-Ben]

I see the PR has been approved but all images builds are failing in CI
I'll block it to make sure we don't merge accidentally