Fix unnecessary_map_or warnings.

Author: reitermarkus

src/indexmap.rs

@@ -1259,7 +1259,7 @@ where
         self.len() == other.len()
             && self
                 .iter()
-                .all(|(key, value)| other.get(key).map_or(false, |v| *value == *v))
+                .all(|(key, value)| other.get(key).is_some_and(|v| *value == *v))
     }
 }
 

src/linear_map.rs

@@ -550,7 +550,7 @@ where
         self.len() == other.len()
             && self
                 .iter()
-                .all(|(key, value)| other.get(key).map_or(false, |v| *value == *v))
+                .all(|(key, value)| other.get(key).is_some_and(|v| *value == *v))
     }
 }