StripUnconfigured::in_cfg: simplify with slice patterns
StripUnconfigured::in_cfg: simplify with slice patterns

aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust