cleanup: Remove redundant base initialisers. #212

Job	Run time
Build debian docker image	2m 8s
Build flatpak docker	1m 30s
Build Android docker image	2m 21s
Build ubuntu LTS docker image	2m 13s
Update nightly release tag	4s
Alpine (full, Debug)	11m 22s
Docs	1m 58s
Build fedora docker image	2m 58s
macOS user	14m 47s
Build windows docker image (i686)	1m 35s
Check for translatable strings	44s
Build windows docker image (x86_64)	2m 4s
Debian (minimal, Debug)	6m 5s
macOS distributable	26m 27s
Android	6m 41s
Flatpak	15m 56s
Ubuntu LTS (full, Release)	6m 24s
Fedora with ASAN (full, Debug)	7m 27s
Clang-Tidy	11m 11s
Windows (i686, Debug)	7m 35s
Windows (i686, Release)	7m 15s
Windows (x86_64, Debug)	9m 47s
Windows (x86_64, Release)	11m 24s
	2h 39m 56s

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