wip: bare bones for C in kernel

Kernel/Source/IO/uart.swift

@@ -1,20 +0,0 @@
-let kUARTBaseAddress: UInt = 0x09000000 // TODO: Make it dynamic by parsion DTB
-
-@_cdecl("putchar")
-@discardableResult
-public func _serialPutchar(_ char: Int32) -> Int32 {
-    let uartFR: UInt = kUARTBaseAddress + 0x18// TXFF -- TRansmit FIFO Full for PL011 is 5 bit of FR reg (0x18)
-
-    while (mmio_read32(uartFR) & (1 << 5)) != 0 {
-        // i love pizza btw
-    }
-    
-    mmio_write32(UInt(kUARTBaseAddress), UInt32(char))
-    return char
-}
-
-public func kprint(_ message: StaticString) {
-    for i in 0..<message.utf8CodeUnitCount {
-        _serialPutchar(Int32(message.utf8Start[i]))
-    }
-}