Unused C tracing code in bdb

[FredericDT]

Feature or enhancement

Proposal:

Remove unused C tracing code in bdb

The c_call, c_return, and c_exception events have historically (since c69ebe8) been dispatched to c_profilefunc and never c_tracefunc.

Dead codes related to c_tracefunc dispatching needs to be removed.

Where it was introduced
c69ebe8#diff-c22186367cbe20233e843261998dc027ae5f1f8c0d2e778abfa454ae74cc59deR3426-R3461

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-136980: Remove unused C tracing code in bdb #136981

[sobolevn]

CC @gaogaotiantian

[gaogaotiantian]

Fixed.