Fix current clippy warnings (#337)

src/reply/mod.rs

@@ -93,7 +93,7 @@ impl ReplyHandle<'_> {
     // TODO: return the edited Message object?
     // TODO: should I eliminate the ctx parameter by storing it in self instead? Would infect
     //  ReplyHandle with <U, E> type parameters
-    pub async fn edit<'att, U, E>(
+    pub async fn edit<U, E>(
         &self,
         ctx: crate::Context<'_, U, E>,
         builder: CreateReply,

src/structs/context.rs

@@ -153,7 +153,7 @@ context_methods! {
     ///
     /// Note: panics when called in an autocomplete context!
     await (send self builder)
-    (pub async fn send<'att>(
+    (pub async fn send(
         self,
         builder: crate::CreateReply,
     ) -> Result<crate::ReplyHandle<'a>, serenity::Error>) {

src/structs/framework_error.rs

@@ -432,8 +432,8 @@ impl<U, E: std::fmt::Display> std::fmt::Display for FrameworkError<'_, U, E> {
     }
 }
 
-impl<'a, U: std::fmt::Debug, E: std::error::Error + 'static> std::error::Error
-    for FrameworkError<'a, U, E>
+impl<U: std::fmt::Debug, E: std::error::Error + 'static> std::error::Error
+    for FrameworkError<'_, U, E>
 {
     fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
         match self {

src/structs/mod.rs

@@ -1,4 +1,5 @@
 //! Plain data structs that define the framework configuration.
+#![allow(clippy::needless_lifetimes)] // Triggered from inside derivative
 
 mod context;
 pub use context::*;