staging: rtl8723au: core: Remove unnecessary else after return

This patch fixes the checkpatch warning that else is not generally
useful after a break or return.

This was done using Coccinelle:
@@
expression e2;
statement s1;
@@
if(e2) { ... return ...; }
-else
s1

Signed-off-by: Bhaktipriya Shridhar <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8723au/core/rtw_efuse.c

···
 		}
 		data = rtl8723au_read8(Adapter, EFUSE_CTRL);
 		return data;
-	} else
-		return 0xFF;
+	}
+	return 0xFF;
 }
 
 /* Read one byte from real Efuse. */