Remove unnecessary check in calibration stage (#1111)

* save

* fix

libafl/src/stages/calibrate.rs

@@ -104,16 +104,11 @@ where
         corpus_idx: CorpusId,
     ) -> Result<(), Error> {
         // Run this stage only once for each corpus entry and only if we haven't already inspected it
-        if state.corpus().get(corpus_idx)?.borrow().fuzz_level() > 0
-            || state
-                .corpus()
-                .get(corpus_idx)?
-                .borrow()
-                .metadata()
-                .get::<SchedulerTestcaseMetaData>()
-                .map_or(false, |meta| meta.bitmap_size() != 0)
         {
-            return Ok(());
+            let corpus = state.corpus().get(corpus_idx)?.borrow();
+            if corpus.fuzz_level() > 0 {
+                return Ok(());
+            }
         }
 
         let mut iter = self.stage_max;