Remove unused BangCam routine

Somewhere along the way, BangCam became redundant. Get rid of it.

s/ARM600

@@ -118,39 +118,6 @@ BangCamUpdate ROUT
         Pull    "r0, r3, r11, r14"
 20
         ADD     sp, sp, #8                      ; junk old logical address, PPL
-        B       BangCamAltEntry                 ; and branch into BangCam code
-
-; **************************************************************************************
-;
-;       BangCam - Update CAM, MMU for page move, assuming page currently mapped out
-;
-; This routine maps a physical page to a given logical address
-; It is assumed that the physical page is currently not mapped anywhere else
-;
-; in:   r2 = physical page number
-;       r3 = logical address (2nd copy if doubly mapped)
-;       r9 = offset from 1st to 2nd copy of doubly mapped area (either source or dest, but not both)
-;       r11 = PPL
-;
-; out:  r0, r1, r4, r6 corrupted
-;       r2, r3, r5, r7-r12 preserved
-;
-; NB The physical page number MUST be in range.
-
-BangCam ROUT
-        TST     r11, #DynAreaFlags_DoublyMapped ; if area doubly mapped
-        SUBNE   r3, r3, r9              ; then move ptr to 1st copy
-
-        LDR     r1, =ZeroPage+PhysRamTable ; go through phys RAM table
-        MOV     r6, r2                  ; make copy of r2 (since that must be preserved)
-10
-        LDMIA   r1!, {r0, r4}           ; load next address, size
-        SUBS    r6, r6, r4, LSR #12     ; subtract off that many pages
-        BCS     %BT10                   ; if more than that, go onto next bank
-
-        ADD     r6, r6, r4, LSR #12     ; put back the ones which were too many
-        ADD     r0, r0, r6, LSL #12     ; move on address by the number of pages left
-BangCamAltEntry
         LDR     r4, =DuffEntry          ; check for requests to map a page to nowhere
         TEQ     r4, r3                  ; don't actually map anything to nowhere
         MOVEQ   pc, lr

s/VMSAv6

@@ -125,39 +125,6 @@ BangCamUpdate ROUT
         Pull    "r0, r3, r11, r14"
 20
         ADD     sp, sp, #8                      ; junk old logical address, PPL
-        B       BangCamAltEntry                 ; and branch into BangCam code
-
-; **************************************************************************************
-;
-;       BangCam - Update CAM, MMU for page move, assuming page currently mapped out
-;
-; This routine maps a physical page to a given logical address
-; It is assumed that the physical page is currently not mapped anywhere else
-;
-; in:   r2 = physical page number
-;       r3 = logical address (2nd copy if doubly mapped)
-;       r9 = offset from 1st to 2nd copy of doubly mapped area (either source or dest, but not both)
-;       r11 = PPL
-;
-; out:  r0, r1, r4, r6 corrupted
-;       r2, r3, r5, r7-r12 preserved
-;
-; NB The physical page number MUST be in range.
-
-BangCam ROUT
-        TST     r11, #DynAreaFlags_DoublyMapped ; if area doubly mapped
-        SUBNE   r3, r3, r9              ; then move ptr to 1st copy
-
-        LDR     r1, =ZeroPage+PhysRamTable ; go through phys RAM table
-        MOV     r6, r2                  ; make copy of r2 (since that must be preserved)
-10
-        LDMIA   r1!, {r0, r4}           ; load next address, size
-        SUBS    r6, r6, r4, LSR #12     ; subtract off that many pages
-        BCS     %BT10                   ; if more than that, go onto next bank
-
-        ADD     r6, r6, r4, LSR #12     ; put back the ones which were too many
-        ADD     r0, r0, r6, LSL #12     ; move on address by the number of pages left
-BangCamAltEntry
         LDR     r4, =DuffEntry          ; check for requests to map a page to nowhere
         TEQ     r4, r3                  ; don't actually map anything to nowhere
         MOVEQ   pc, lr