Removed incorrectly-implemented Deprecated element type.

Author: SpaceManiac

src/bson.rs

@@ -41,7 +41,6 @@ pub enum Bson {
     RegExp(String, String),
     JavaScriptCode(String),
     JavaScriptCodeWithScope(String, Document),
-    Deprecated,
     I32(i32),
     I64(i64),
     TimeStamp(i64),
@@ -68,7 +67,6 @@ impl Bson {
             &Bson::RegExp(..) => ElementType::RegularExpression,
             &Bson::JavaScriptCode(..) => ElementType::JavaScriptCode,
             &Bson::JavaScriptCodeWithScope(..) => ElementType::JavaScriptCodeWithScope,
-            &Bson::Deprecated => ElementType::Deprecated,
             &Bson::I32(..) => ElementType::Integer32Bit,
             &Bson::I64(..) => ElementType::Integer64Bit,
             &Bson::TimeStamp(..) => ElementType::TimeStamp,
@@ -108,7 +106,6 @@ impl Bson {
 
                 json::Json::Object(obj)
             },
-            &Bson::Deprecated => json::Json::String("deprecated".to_owned()),
             &Bson::I32(v) => json::Json::I64(v as i64),
             &Bson::I64(v) => json::Json::I64(v),
             &Bson::TimeStamp(v) => json::Json::I64(v),

src/decoder.rs

@@ -209,14 +209,14 @@ fn decode_bson<R: Read + ?Sized>(reader: &mut R, tag: u8) -> DecoderResult<Bson>
             let scope = try!(decode_document(reader));
             Ok(Bson::JavaScriptCodeWithScope(code, scope))
         },
-        Some(Deprecated) => Ok(Bson::Deprecated),
         Some(Integer32Bit) => read_i32(reader).map(Bson::I32),
         Some(Integer64Bit) => read_i64(reader).map(Bson::I64),
         Some(TimeStamp) => read_i64(reader).map(Bson::TimeStamp),
         Some(UtcDatetime) => {
             let time = try!(read_i64(reader));
             Ok(Bson::UtcDatetime(DateTime::from_utc(NaiveDateTime::from_timestamp(time, 0), UTC)))
         },
+		Some(Deprecated) |
         Some(Undefined) |
         Some(DbPointer) |
         Some(MaxKey) |

src/encoder.rs

@@ -163,8 +163,7 @@ fn encode_bson<W: Write + ?Sized>(writer: &mut W, key: &str, val: &Bson) -> Enco
             writer.write_all(data).map_err(From::from)
         },
         &Bson::UtcDatetime(ref v) => write_i64(writer, v.timestamp()),
-        &Bson::Null |
-        &Bson::Deprecated => Ok(())
+        &Bson::Null => Ok(())
     }
 }