Removal of "test_sba_config_reg" command

[JanMatCodasip]

I'd like to remove the command test_sba_config_reg and the associated function riscv013_test_sba_config_reg(). These are leftover from the compliance tests, and those were already removed in https://github.com/riscv/riscv-openocd/pull/567/files#diff-701864e2be3210275085c84b8f6fa7f9eb6171a2a18ca71638be42a155c08c63L4854.

@timsifive:

• Would you agree?
• If so, do you prefer
  • a) to remove them directly?
  • b) or shall I add a deprecation notice first?

Thanks.

[timsifive]

Just go and remove it. If people want it, they can dig in github and build an old OpenOCD that supports it.

[JanMatCodasip]

test_sba_config_reg has already been removed in https://github.com/riscv/riscv-openocd/pull/780

Closing this issue.