Revert change to psa_destroy_key documentation

Signed-off-by: Ryan Everett <ryan.everett@arm.com>
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 2a8183e..d15ace5 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1126,7 +1126,7 @@
 
 exit:
     status = psa_wipe_key_slot(slot);
-    /* Prioritize an error from wiping over a storage error */
+    /* Prioritize CORRUPTION_DETECTED from wiping over a storage error */
     if (status != PSA_SUCCESS) {
         overall_status = status;
     }