feat(ffi): implement Display trait for NetworkInfo and remove to_string method

dash-network-ffi/src/lib.rs

@@ -1,5 +1,7 @@
 //! FFI bindings for dash-network library
 
+use std::fmt;
+
 use dash_network::Network as DashNetwork;
 
 // Initialize function
@@ -70,10 +72,6 @@ impl NetworkInfo {
         self.network.magic()
     }
 
-    pub fn to_string(&self) -> String {
-        self.network.to_string()
-    }
-
     pub fn is_core_v20_active(&self, block_height: u32) -> bool {
         self.network.core_v20_is_active_at(block_height)
     }
@@ -83,6 +81,12 @@ impl NetworkInfo {
     }
 }
 
+impl fmt::Display for NetworkInfo {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.network.fmt(f)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;