Silence an unused function warning

1 job for v20.08.0 in 7 minutes and 20 seconds (queued for 153 minutes and 51 seconds)
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Status Job ID Name Coverage
  Build
failed build_clazy_clang_tidy #62191

00:07:20

 
Name Stage Failure
failed
build_clazy_clang_tidy Build
clang-10.0: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [autotests/CMakeFiles/filetest.dir/build.make:118: bin/filetest] Error 1
make[1]: *** [CMakeFiles/Makefile2:699: autotests/CMakeFiles/filetest.dir/all] Error 2
make: *** [Makefile:160: all] Error 2
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ERROR: Job failed: exit code 1