removes len and is_empty from PointerBuf

src/pointer.rs

@@ -832,35 +832,6 @@ impl PointerBuf {
         self
     }
 
-    //  Returns the length of `self` in encoded format.
-    ///
-    /// This length expresses the byte count of the underlying string that
-    /// represents the RFC 6091 Pointer. See also [`std::str::len`].
-    ///
-    /// ## Examples
-    /// ```
-    /// let ptr = jsonptr::Pointer::from_static("/foo/bar");
-    /// assert_eq!(ptr.len(), 8);
-    ///
-    /// ```
-    pub fn len(&self) -> usize {
-        self.0.len()
-    }
-
-    /// Returns `true` if the `Pointer` is empty (i.e. root).    
-    ///
-    /// ## Examples
-    /// ```
-    /// let mut ptr = jsonptr::PointerBuf::new();
-    /// assert!(ptr.is_empty());
-    ///
-    /// ptr.push_back("foo");
-    /// assert!(!ptr.is_empty());
-    /// ```
-    pub fn is_empty(&self) -> bool {
-        self.0.is_empty()
-    }
-
     /// Pushes a `Token` onto the front of this `Pointer`.
     pub fn push_front<'t>(&mut self, token: impl Into<Token<'t>>) {
         self.0.insert(0, '/');