Update README.md (#47)

README.md

@@ -47,42 +47,6 @@ fn test_generic_type(ctx: &mut MyGenericContext<u32>) {
 }
 ```
 
-with generic types, you can use same type with different values
-
-```rust
-use test_context::{test_context, TestContext};
-use std::marker::PhantomData;
-
-struct MyGenericContext<T> {
-    value: u32,
-    _marker: PhantomData<T>,
-}
-
-impl TestContext for MyGenericContext<String> {
-    fn setup() -> MyGenericContext<String> {
-        MyGenericContext { value: 1, _marker: PhantomData }
-    }
-}
-
-#[test_context(MyGenericContext<String>)]
-#[test]
-fn test_generic_type(ctx: &mut MyGenericContext<String>) {
-    assert_eq!(ctx.value, 1);
-}
-
-impl TestContext for MyGenericContext<u32> {
-    fn setup() -> MyGenericContext<u32> {
-        MyGenericContext { value: 2, _marker: PhantomData }
-    }
-}
-
-#[test_context(MyGenericContext<u32>)]
-#[test]
-fn test_generic_type_u32(ctx: &mut MyGenericContext<u32>) {
-    assert_eq!(ctx.value, 2);
-}
-```
-
 Alternatively, you can use `async` functions in your test context by using the
 `AsyncTestContext`.