lang: Don't build example docs code

lang/attribute/access-control/src/lib.rs

@@ -9,7 +9,7 @@ use syn::parse_macro_input;
 ///
 /// # Example
 ///
-/// ```
+/// ```ignore
 /// use anchor_lang::prelude::*;
 ///
 /// #[program]
@@ -37,7 +37,6 @@ use syn::parse_macro_input;
 ///     Ok(())
 ///   }
 /// }
-/// ...
 /// ```
 ///
 /// This example demonstrates a useful pattern. Not only can you use

lang/attribute/error/src/lib.rs

@@ -13,7 +13,7 @@ use syn::parse_macro_input;
 ///
 /// # Example
 ///
-/// ```
+/// ```ignore
 /// use anchor_lang::prelude::*;
 ///
 /// #[program]

lang/derive/accounts/src/lib.rs

@@ -11,7 +11,7 @@ use syn::parse_macro_input;
 ///
 /// # Example
 ///
-/// ```
+/// ```ignore
 /// #[derive(Accounts)]
 /// pub struct Auth<'info> {
 ///     #[account(mut, has_one = authority)]