remove unnessary conversions to itself

Reasons:
- Remove unnecessary steps. into() is called on String when the expected
  type is already String.

Signed-off-by: Perma Alesheikh <me@prma.dev>

src/email/message/command/read.rs

@@ -152,7 +152,7 @@ impl MessageReadCommand {
                 // display what can be displayed
                 bodies.push_str(&String::from_utf8_lossy(email.raw()?));
             } else {
-                let tpl: String = email
+                let tpl = email
                     .to_read_tpl(&account_config, |mut tpl| {
                         if self.no_headers {
                             tpl = tpl.with_hide_all_headers();
@@ -166,8 +166,7 @@ impl MessageReadCommand {
 
                         tpl
                     })
-                    .await?
-                    .into();
+                    .await?;
                 bodies.push_str(&tpl);
             }
 

src/email/message/template/command/forward.rs

@@ -95,7 +95,7 @@ impl TemplateForwardCommand {
         .await?;
 
         let id = self.envelope.id;
-        let tpl: String = backend
+        let tpl = backend
             .get_messages(folder, &[id])
             .await?
             .first()
@@ -104,8 +104,7 @@ impl TemplateForwardCommand {
             .with_headers(self.headers.raw)
             .with_body(self.body.raw())
             .build()
-            .await?
-            .into();
+            .await?;
 
         printer.print(tpl)
     }

src/email/message/template/command/reply.rs

@@ -99,7 +99,7 @@ impl TemplateReplyCommand {
         )
         .await?;
 
-        let tpl: String = backend
+        let tpl = backend
             .get_messages(folder, &[id])
             .await?
             .first()
@@ -109,8 +109,7 @@ impl TemplateReplyCommand {
             .with_body(self.body.raw())
             .with_reply_all(self.reply.all)
             .build()
-            .await?
-            .into();
+            .await?;
 
         printer.print(tpl)
     }