sdio: remove obsolete attribute

plorefice · plorefice · commit 619bf3454872 · 2020-05-19T11:07:52.000+02:00
diff --git a/src/sdio.rs b/src/sdio.rs
@@ -116,7 +116,6 @@ enum PowerCtrl {
 }
 
 /// Clock frequency of a SDIO bus.
-#[allow(dead_code)]
 pub enum ClockFreq {
     F24Mhz = 0,
     F16Mhz = 1,
