Remove enforcement of C++14 standard. Modern defaults are:
C++14 on Ubuntu 20.04 / gcc 9.4
C++17 on Ubuntu 22.04 / gcc 11.4
Thus, C++14 is satisfied automatically on these systems.
However, on Ubuntu 22.04, log4cxx requires C++17 (which is the default).
Enforcing C++14 downgrades the standard, rendering log4cxx uncompilable.
Remove enforcement of C++14 standard. Modern defaults are:
Thus, C++14 is satisfied automatically on these systems. However, on Ubuntu 22.04, log4cxx requires C++17 (which is the default). Enforcing C++14 downgrades the standard, rendering log4cxx uncompilable.