Revert diagnostic tests which trigger trybuild path bug

codegen/ui_tests/rhai_fn_non_clonable_return.rs

@@ -1,27 +0,0 @@
-use rhai::plugin::*;
-
-struct NonClonable {
-    a: f32,
-    b: u32,
-    c: char,
-    d: bool,
-}
-
-#[export_fn]
-pub fn test_fn(input: f32) -> NonClonable {
-    NonClonable {
-        a: input,
-        b: 10,
-        c: 'a',
-        d: true,
-    }
-}
-
-fn main() {
-    let n = test_fn(20.0);
-    if n.c == 'a' {
-        println!("yes");
-    } else {
-        println!("no");
-    }
-}

codegen/ui_tests/rhai_fn_non_clonable_return.stderr

@@ -1,10 +0,0 @@
-error[E0277]: the trait bound `NonClonable: std::clone::Clone` is not satisfied
-   --> $DIR/rhai_fn_non_clonable_return.rs:11:8
-    |
-11  | pub fn test_fn(input: f32) -> NonClonable {
-    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::clone::Clone` is not implemented for `NonClonable`
-    |
-   ::: /home/cryptkeeper/Desktop/Software/ytdl-replacement/rhai/src/any.rs:537:30
-    |
-537 |     pub fn from<T: Variant + Clone>(value: T) -> Self {
-    |                              ----- required by this bound in `rhai::Dynamic::from`

codegen/ui_tests/rhai_mod_non_clonable_return.rs

@@ -1,29 +0,0 @@
-use rhai::plugin::*;
-
-struct NonClonable {
-    a: f32,
-    b: u32,
-    c: char,
-    d: bool,
-}
-
-#[export_module]
-pub mod test_mod {
-    pub fn test_fn(input: f32) -> NonClonable {
-        NonClonable {
-            a: input,
-            b: 10,
-            c: 'a',
-            d: true,
-        }
-    }
-}
-
-fn main() {
-    let n = test_mod::test_fn(20.0);
-    if n.c == 'a' {
-        println!("yes");
-    } else {
-        println!("no");
-    }
-}

codegen/ui_tests/rhai_mod_non_clonable_return.stderr

@@ -1,10 +0,0 @@
-error[E0277]: the trait bound `NonClonable: std::clone::Clone` is not satisfied
-   --> $DIR/rhai_mod_non_clonable_return.rs:12:12
-    |
-12  |     pub fn test_fn(input: f32) -> NonClonable {
-    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::clone::Clone` is not implemented for `NonClonable`
-    |
-   ::: /home/cryptkeeper/Desktop/Software/ytdl-replacement/rhai/src/any.rs:537:30
-    |
-537 |     pub fn from<T: Variant + Clone>(value: T) -> Self {
-    |                              ----- required by this bound in `rhai::Dynamic::from`