Cleanup allow(unused_imports)

Reviewed By: zertosh

Differential Revision: D52967624

fbshipit-source-id: d78fa0fe8ff2a9251f47a7cb0b3cf714c03221ba

Author: capickett

compiler/crates/graphql-syntax/src/lib.rs

@@ -26,8 +26,6 @@ pub use parser::FragmentArgumentSyntaxKind;
 pub use parser::ParserFeatures;
 pub use source::GraphQLSource;
 pub use syntax_error::SyntaxError;
-#[allow(unused_imports)]
-pub use utils::*;
 
 use crate::parser::Parser;