Apply clippy lint needless_lifetimes suggestions

Author: SpriteOvO

spdlog/src/formatter/json_formatter.rs

@@ -18,7 +18,7 @@ fn opt_to_num<T>(opt: Option<T>) -> usize {
 
 struct JsonRecord<'a>(&'a Record<'a>);
 
-impl<'a> Serialize for JsonRecord<'a> {
+impl Serialize for JsonRecord<'_> {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: serde::Serializer,

spdlog/src/formatter/local_time_cacher.rs

@@ -120,7 +120,7 @@ macro_rules! impl_cache_fields_str_getter {
     };
 }
 
-impl<'a> TimeDate<'a> {
+impl TimeDate<'_> {
     #[must_use]
     pub(crate) fn full_second_str(&mut self) -> &str {
         if self.cached.full_second_str.is_none() {
@@ -327,7 +327,7 @@ pub(crate) struct TimeDateLazyLocked<'a> {
     locked: Option<TimeDateLocked<'a>>,
 }
 
-impl<'a> TimeDateLazyLocked<'a> {
+impl TimeDateLazyLocked<'_> {
     #[must_use]
     pub(crate) fn new(time: SystemTime) -> Self {
         Self { time, locked: None }

spdlog/src/formatter/pattern_formatter/mod.rs

@@ -461,7 +461,7 @@ impl Pattern for str {
     }
 }
 
-impl<'a, T> Pattern for &'a T
+impl<T> Pattern for &T
 where
     T: ?Sized + Pattern,
 {