Removed faulty native signed integer implementation

Author: KizzyCode

README.md

@@ -51,8 +51,7 @@ For the (de-)serialization of structs and similar via `derive`, see
 There are also some direct `DerDecodable`/`DerDecodable` implementations for native Rust type 
 equivalents:
  - The ASN.1-`BOOLEAN` type as Rust-`bool`
- - The ASN.1-`INTEGER` type as Rust-[`u8`, `u16`, `u32`, `u64`, `u128`, `usize`,
-   `i8`, `i16`, `i32`, `i64`, `i128`, `isize`]
+ - The ASN.1-`INTEGER` type as Rust-[`u8`, `u16`, `u32`, `u64`, `u128`, `usize`]
  - The ASN.1-`NULL` type as either `()` or `Option::None` (which allows the encoding of
    optionals)
  - The ASN.1-`OctetString` type as `Vec<u8>`

src/lib.rs

@@ -53,8 +53,7 @@
 //! There are also some direct `DerDecodable`/`DerDecodable` implementations for native Rust type
 //! equivalents:
 //!  - The ASN.1-`BOOLEAN` type as Rust-`bool`
-//!  - The ASN.1-`INTEGER` type as Rust-[`u8`, `u16`, `u32`, `u64`, `u128`, `usize`,
-//!    `i8`, `i16`, `i32`, `i64`, `i128`, `isize`]
+//!  - The ASN.1-`INTEGER` type as Rust-[`u8`, `u16`, `u32`, `u64`, `u128`, `usize`]
 //!  - The ASN.1-`NULL` type as either `()` or `Option::None` (which allows the encoding of
 //!    optionals)
 //!  - The ASN.1-`OctetString` type as `Vec<u8>`

tests/err_typed.rs

@@ -24,7 +24,7 @@ fn integer() {
 			($num:ty) => (<$num>::decode(&test.bytes).assert_err(&test.err, &test.name));
 			($( $num:ty ),+) => ($( native!($num); )+);
 		}
-		native!(u8, u16, u32, u64, u128, usize, i8, i16, i32, i64, i128, isize);
+		native!(u8, u16, u32, u64, u128, usize);
 	}
 }