clang-tidy: Fix all remaining misc-include-cleaner violations

- Remove unused includes
- Add common false positive headers to misc-include-cleaner.IgnoreHeaders
- Add IWYU pragma keep for uncommon false positive headers

src/cryptsetup/cryptsetup.c

@@ -28,7 +28,6 @@
 #include "extract-word.h"
 #include "fileio.h"
 #include "fs-util.h"
-#include "fstab-util.h"
 #include "hexdecoct.h"
 #include "json-util.h"
 #include "libfido2-util.h"
@@ -36,7 +35,6 @@
 #include "log.h"
 #include "main-func.h"
 #include "memory-util.h"
-#include "mount-util.h"
 #include "nulstr-util.h"
 #include "parse-util.h"
 #include "path-util.h"