[Feature Request]: refactor op-geth branch to main and main to pure branch

[gupadhyaya]

Implementation ideas

We currently have pure geth client in the main repo and op-geth based client in the op-geth branch. we need to make op-geth the main branch and main can be made into some other branch, just in case if we need pure geth client in the future.

[tac0turtle]

this is being done in the main rollkti repo