[cvs-nhc98] patch applied (hat): Tidy up tracing runtime system.

[Malcolm Wallace]

Thu Jun 14 05:38:09 PDT 2001  malcolm
  * Tidy up tracing runtime system.
    (1) browsercomms.c is obsolete
    (2) new initexit.c takes care of initialisation + interrupt/error routines
    (3) remove some dead code and old references elsewhere

    M ./src/old/runtime/Makefile -3 +3
    R ./src/old/runtime/browsercomms.c
    M ./src/old/runtime/fileformat.c +10
    M ./src/old/runtime/fileformat.h +3
    M ./src/old/runtime/getconstr.c -21 +2
    A ./src/old/runtime/initexit.c
    M ./src/old/runtime/io.c -22 +1
    M ./src/old/runtime/numeric.c -5 +3
    M ./src/old/runtime/trust.c -7 +6
    M ./src/old/runtime/ui.h -1 +1