Removing embedded song model and default functions

src/song.rs

@@ -1,4 +1,4 @@
-use std::default::Default;
+// use std::default::Default;
 use std::io::Read;
 
 use crate::constants;
@@ -64,6 +64,7 @@ fn is_dur_not_set(num: &i32) -> bool {
     *num == 0
 }
 
+/*
 impl Default for Song {
     fn default() -> Self {
         Song {
@@ -92,6 +93,7 @@ impl Default for Song {
         }
     }
 }
+*/
 
 impl Song {
     pub fn to_metadata_json(&self, pretty: bool) -> Result<String, serde_json::Error> {
@@ -189,6 +191,7 @@ impl Song {
     }
 }
 
+/*
 mod embedded {
     use std::io::Read;
 
@@ -341,3 +344,4 @@ mod embedded {
         }
     }
 }
+*/