[jmmv/kyua] 892bbc: Eliminate `UTILS_UNUSED_PARAM(..)` macro

[ngie-eign]

Branch: refs/heads/master
Home: https://github.com/jmmv/kyua
Commit: 892bbc86d5d2bde7d231e4453b118080cd6f7e41
https://github.com/jmmv/kyua/commit/892bbc86d5d2bde7d231e4453b118080cd6f7e41
Author: Enji Cooper <yaneu...@gmail.com>
Date: 2019-04-01 (Mon, 01 Apr 2019)

Changed paths:
M Doxyfile.in
M admin/check-style-cpp.awk
M bootstrap/plain_helpers.cpp
M cli/cmd_about.cpp
M cli/cmd_db_exec.cpp
M cli/cmd_db_migrate.cpp
M cli/cmd_help.cpp
M cli/cmd_help_test.cpp
M cli/cmd_report.cpp
M cli/cmd_report_html.cpp
M cli/cmd_report_junit.cpp
M cli/main_test.cpp
M drivers/report_junit.cpp
M drivers/scan_results.cpp
M engine/atf.cpp
M engine/plain.cpp
M engine/scheduler.cpp
M engine/scheduler_test.cpp
M engine/tap.cpp
M model/metadata.cpp
M utils/auto_array_test.cpp
M utils/cmdline/base_command_test.cpp
M utils/cmdline/commands_map_test.cpp
M utils/cmdline/options.cpp
M utils/cmdline/options_test.cpp
M utils/config/lua_module_test.cpp
M utils/config/nodes.ipp
M utils/defs.hpp.in
M utils/fs/operations.cpp
M utils/memory.cpp
M utils/optional.ipp
M utils/process/child_test.cpp
M utils/process/executor_test.cpp
M utils/signals/timer.cpp
M utils/signals/timer_test.cpp
M utils/sqlite/statement.cpp
M utils/stacktrace_test.cpp

Log Message:
-----------
Eliminate `UTILS_UNUSED_PARAM(..)` macro

Unlike C, C++ has the ability to omit parameter names in implemented
interfaces when the parameter is unused, aka "unnamed parameters".

This change does the following:
1. Mechanically replace `UTILS_UNUSED_PARAM(x)` with `/* x */`.
2. Removes all doxygen directives that reference `unused_*`.
3. Removes the `UTILS_UNUSED_PARAM(x)` macro.

Signed-off-by: Enji Cooper <yaneu...@gmail.com>