Fix clippy::only-used-in-recursion (#1186)

* Fix `clippy::only-used-in-recursion`

	error: parameter is only used in recursion
	--> crates/env/src/types.rs:60:22
	|
	60 |     fn from_le_bytes(bytes: Self::Bytes) -> Self {
	|                      ^^^^^ help: if this is intentional, prefix with an underscore: `_bytes`
	|
	= note: `-D clippy::only-used-in-recursion` implied by `-D warnings`
	= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#only_used_in_recursion

* Make recursion explicit

Author: cmichi

crates/env/src/types.rs

@@ -58,7 +58,7 @@ impl FromLittleEndian for u8 {
 
     #[inline]
     fn from_le_bytes(bytes: Self::Bytes) -> Self {
-        Self::from_le_bytes(bytes)
+        u8::from_le_bytes(bytes)
     }
 }
 
@@ -67,7 +67,7 @@ impl FromLittleEndian for u16 {
 
     #[inline]
     fn from_le_bytes(bytes: Self::Bytes) -> Self {
-        Self::from_le_bytes(bytes)
+        u16::from_le_bytes(bytes)
     }
 }
 
@@ -76,7 +76,7 @@ impl FromLittleEndian for u32 {
 
     #[inline]
     fn from_le_bytes(bytes: Self::Bytes) -> Self {
-        Self::from_le_bytes(bytes)
+        u32::from_le_bytes(bytes)
     }
 }
 
@@ -85,7 +85,7 @@ impl FromLittleEndian for u64 {
 
     #[inline]
     fn from_le_bytes(bytes: Self::Bytes) -> Self {
-        Self::from_le_bytes(bytes)
+        u64::from_le_bytes(bytes)
     }
 }
 
@@ -94,7 +94,7 @@ impl FromLittleEndian for u128 {
 
     #[inline]
     fn from_le_bytes(bytes: Self::Bytes) -> Self {
-        Self::from_le_bytes(bytes)
+        u128::from_le_bytes(bytes)
     }
 }