various: don't use close_nointr if retval is not checked anyway

src/shared/fdset.c

@@ -3,6 +3,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <stddef.h>
+#include <unistd.h>
 
 #include "sd-daemon.h"
 
@@ -71,7 +72,7 @@ void fdset_close(FDSet *s) {
                         log_debug("Closing set fd %i (%s)", fd, strna(path));
                 }
 
-                (void) close_nointr(fd);
+                (void) close(fd);
         }
 }