clean up warnings a bit

hs/Peripherals/Uart.hs

@@ -5,20 +5,15 @@ import Types (Byte)
 import Data.Char (ord, chr)
 
 import Peripherals.UartCFFI (
-    initTerminal,
-    restoreTerminal,
     getCharFromTerminal,
     writeCharToTerminal,
     isCharAvailable,
-    setupSigintHandler,
-    wasCtrlCReceived
   )
 
 import BusTypes (
     TransactionSize(..),
     BusVal(..),
   )
-import GHC.Generics (URec(UAddr), Generic (from))
 
 -- based on a 16550 UART which has an address space of 8 bytes
 type UartAddr = Unsigned 3