* coffread.c, dbxread.c, elfread.c, mipsread.c somread.c:
Adjust the struct sym_fns object accordingly by setting
the new field to NULL.
* xcoffread.c (aix_process_linenos): Make static.
(xcoff_sym_fns): Set new field to aix_process_linenos.
* buildsym.c (end_symtab): Replace call to PROCESS_LINENUMBER_HOOK
by call to new the new sym_fns sym_read_linetable function.
* config/powerpc/aix.mt (DEPRECATED_TM_FILE): Delete.
* config/rs6000/tm-rs6000.h: Delete.