Revert "[prometheus-operator] feat: add scripts to make upgrading eas…

…ier (#742)  * chore: move all mesosphere files to patch  This moves all the mesosphere-related templates to the patch folder. This makes it easier to update the operator with a copy and replace as none of the mesosphere files will get lost.  Signed-off-by: Sam Tran <[email protected]>  * feat: add patch files  This adds patch files that copy all the mesosphere files into the templates/ folder. This way they get deployed as part of the chart.  It makes it easier to keep all the patches in one place and know what changes are needed/differ from upstream.  Signed-off-by: Sam Tran <[email protected]>  * feat: add helpers script for git commands  This adds a helper file so that all the patch files can use the git_add_and_commit function which adds and commits all the files that were changed as part of the patch script. This should make it easy to see the commit history of what changed.  Signed-off-by: Sam Tran <[email protected]>  * chore: update prometheus crd patch script  This commit updates the patch script to use a docker image as the previous code did not run on OSX.  Also, due to the underlying go-parser lib used in the yq docker image, updating a yaml file automatically reformats the yaml removing empty newlines and converting multiline strings into one line[1]. This makes it hard to see the actual needed change for patch7 which is just to update the crd volumeClaimTemplate.metadata stanza.  Thus, patch7 is changed to apply two commits, one to simply let yq format the file with no new changes and a second commit with the needed change. Similar to what we do with chart revision changes.  Also updated the helper script to accept a commit message.  [1] mikefarah/yq#465 (comment)  Signed-off-by: Sam Tran <[email protected]>  * feat: add update_operator script  This script does a sparse clone of helm/stable/prometheus-operator and replaces all the files in our fork with latest upstream.  Then it applies all the patches in the /patch folder which should now make updating our prometheus chart a bit easier.  Signed-off-by: Sam Tran <[email protected]>  * chore: add newlines from PR review  Signed-off-by: Sam Tran <[email protected]>  * chore: add doc for upgrading + patch comments  Add an UPGRADING doc so users know what to do to upgrade. Add comments to the patch scripts so users know what each one does. crd patch script needed explaining.  Signed-off-by: Sam Tran <[email protected]>  * chore: add patch for checking CRD exists again  This adds back the check for  that was removed from upstream.  Signed-off-by: Sam Tran <[email protected]>  * chore: fixup shellcheck errors  Co-authored-by: Joe Julian <[email protected]>"

This reverts commit 54b4815.