build: remove Coverity work-around

Coverity hasn't been used in a long while, by their web-site [1], last
analyzing was done in 2019-02 - over 4 years ago.

meson.build

@@ -58,25 +58,6 @@ libratbag_data_dir = join_paths(get_option('prefix'),
 libratbag_data_dir_devel = join_paths(project_source_root, 'data', 'devices')
 config_h.set_quoted('LIBRATBAG_DATA_DIR', libratbag_data_dir)
 
-# Coverity breaks because it doesn't define _Float128 correctly, you'll end
-# up with a bunch of messages in the form:
-# "/usr/include/stdlib.h", line 133: error #20: identifier "_Float128" is
-#           undefined
-#   extern _Float128 strtof128 (const char *__restrict __nptr,
-#          ^
-# We don't use float128 ourselves, it gets pulled in from math.h or
-# something, so let's just define it as uint128 and move on.
-# Unfortunately we can't detect the coverity build at meson configure
-# time, we only know it fails at runtime. So make this an option instead, to
-# be removed when coverity fixes this again.
-if get_option('coverity')
-        config_h.set('_Float128', '__uint128_t')
-        config_h.set('_Float32', 'int')
-        config_h.set('_Float32x', 'int')
-        config_h.set('_Float64', 'long')
-        config_h.set('_Float64x', 'long')
-endif
-
 # dependencies
 pkgconfig = import('pkgconfig')
 dep_udev = dependency('libudev')

meson_options.txt

@@ -38,8 +38,3 @@ option('logind-provider',
   choices: [ 'elogind', 'systemd'],
   value : 'systemd',
   description : 'Which logind provider to use')
-
-option('coverity',
-       type: 'boolean',
-       value: false,
-       description: 'Enable coverity build fixes, see meson.build for details [default=false]')