test_pgrep: Remove accidentally left debug print

Author: dezgeg

tests/by-util/test_pgrep.rs

@@ -424,8 +424,6 @@ fn test_current_user() {
 #[test]
 #[cfg(target_os = "linux")]
 fn test_does_not_match_current_process() {
-    let our_pid = std::process::id();
-    dbg!(&our_pid);
     new_ucmd!()
         .arg("-f")
         .arg("UNIQUE_STRING_THAT_DOES_NOT_MATCH_ANY_OTHER_PROCESS")