libpqxx26 conflicts with libpqxx

[ryandesign (Ryan Carsten Schmidt)]

See summary:

$ sudo port install compiler.blacklist=clang
--->  Computing dependencies for libpqxx26
--->  Fetching distfiles for libpqxx26
--->  Verifying checksum(s) for libpqxx26
--->  Extracting libpqxx26
--->  Configuring libpqxx26
--->  Building libpqxx26
--->  Staging libpqxx26 into destroot
--->  Installing libpqxx26 @2.6.9_0
--->  Activating libpqxx26 @2.6.9_0
Error: org.macports.activate for port libpqxx26 returned: Image error: /opt/local/bin/pqxx-config is being used by the active libpqxx port.  Please deactivate this port first, or use 'port -f activate libpqxx26' to force the activation.
Please see the log file for port libpqxx26 for details:
    /opt/local/var/macports/logs/_Users_rschmidt_macports_dports_databases_libpqxx26/libpqxx26/main.log
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port libpqxx26 failed

The ports either should not conflict, or should indicate that they do.

[mf2k (Frank Schima)]

dweber has retired. See #43834.

[dgilman (David Gilman)]

In d9ae8f00e5bae23a37409613f6bb679959c43b35/macports-ports (master):

libpqxx26: remove port

Closes: #39299
Closes: #39300