Fixed tests

Author: cactorium

src/test/debuginfo/gdb-pretty-struct-and-enums.rs

@@ -75,7 +75,6 @@
 // gdb-command: print none_check2
 // gdb-check:$18 = None
 
-use self::CStyleEnum::{CStyleEnumVar1, CStyleEnumVar2, CStyleEnumVar3};
 use self::CStyleEnum::{CStyleEnumVar1, CStyleEnumVar2, CStyleEnumVar3};
 use self::MixedEnum::{MixedEnumCStyleVar, MixedEnumTupleVar, MixedEnumStructVar};
 use self::NestedEnum::{NestedVariant1, NestedVariant2};