Change docker/Dockerfile, docker/Makefile and docker/build_radare2.sh…

[fr0ster]

… because docker/Dockerfile-dev and radare2 were deleted

Your checklist for this pull request

• [X] I've read the guidelines for contributing to this repository
• [X] I made sure to follow the project's coding style
• [X] I've updated the documentation with the relevant information (if needed)

Detailed description

In commit 1b7ff712bcfcf3091f8b78cc21ef9f3aaca37435 submodule radae2 and docker/Dockerfile-dev were removed and it demands changes in this PR

Test plan (required)

$ cd docker
$ make build

Closing issues

I didn't open issue about broken docker image building just make PR :)

[trufae]

Beautiful. Thank you :)