Remove staticx

[SebastianSchildt]

I think "size-wise" we can get rid of staticx, and this is one quick shot at it.

Advantages

• no more weird patchelf issues or incompatibilities with pyintaller
• one less moving part

Disadvantages

• To get a small image needed to switch to Alpine (as "from scratch" is not possible after pyinstaller). This leads to longer build times due to GRPC needing to be built for MUSL

The current size on arm64

 % docker images | grep dbc                                         
dbc                                                                              latest                 a0f3a5b42edb   3 minutes ago    39.4MB

I did test, it can start and play logfile to dataroker, I had no way to

• test amd64 version
• test whether access ot socketcan (vcan) still works