chore: revert kperf changes

Author: indietyp

libs/darwin-kperf/criterion/src/pmc.rs

@@ -145,9 +145,6 @@ impl Drop for HardwareCounter {
         // drop order is field declaration order), and we are the sole owner.
         // No ThreadSampler will be running after this point.
         let _result = unsafe { SAMPLER.release() };
-
-        // The sampler can now be acquired again.
-        SAMPLER_ACQUIRED.store(false, Ordering::SeqCst);
     }
 }
 

libs/darwin-kperf/events/src/lib.rs

@@ -59,7 +59,7 @@ impl Cpu {
             b"a15" => Some(Self::M2),
             b"a16" | b"as1" | b"as2" | b"as3" => Some(Self::M3),
             b"as4" | b"as4-1" | b"as4-2" => Some(Self::M4),
-            b"as5" | b"as5-1" | b"as5-2" => Some(Self::M5),
+            b"as5" | b"as5-2" => Some(Self::M5),
             _ => None,
         }
     }