[FREELDR] Remove unused stuff in pccons.c and uefimem.c (reactos#8498)

Author: HBelusca

boot/freeldr/freeldr/arch/i386/pc/pccons.c

@@ -18,12 +18,6 @@
 
 #include <freeldr.h>
 
-#define TEXTMODE_BUFFER      0xb8000
-#define TEXTMODE_BUFFER_SIZE 0x8000
-
-#define TEXT_COLS  80
-#define TEXT_LINES 25
-
 VOID
 PcConsPutChar(int Ch)
 {

boot/freeldr/freeldr/arch/uefi/uefimem.c

@@ -30,7 +30,6 @@ AddMemoryDescriptor(
 extern ULONG LoaderPagesSpanned;
 extern EFI_SYSTEM_TABLE* GlobalSystemTable;
 extern EFI_HANDLE GlobalImageHandle;
-extern REACTOS_INTERNAL_BGCONTEXT framebufferData;
 
 EFI_MEMORY_DESCRIPTOR* EfiMemoryMap = NULL;
 UINT32 FreeldrDescCount;