Centralise fault handling

This should be done as all platforms essentially did the same anyway and there was nothing platform specific.

linux/LinuxCRT.c

@@ -1,41 +0,0 @@
-/*
-htop - LinuxCRT.c
-(C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
-in the source distribution for its full text.
-*/
-
-#include "config.h"
-#include "LinuxCRT.h"
-#include "CRT.h"
-
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef HAVE_EXECINFO_H
-#include <execinfo.h>
-#endif
-
-void CRT_handleSIGSEGV(int sgn) {
-   (void) sgn;
-   CRT_done();
-   #ifdef __linux
-   fprintf(stderr, "\n\nhtop " VERSION " aborting. Please report bug at https://htop.dev\n");
-   #ifdef HAVE_EXECINFO_H
-   size_t size = backtrace(backtraceArray, ARRAYSIZE(backtraceArray));
-   fprintf(stderr, "\n Please include in your report the following backtrace: \n");
-   backtrace_symbols_fd(backtraceArray, size, 2);
-   fprintf(stderr, "\nAdditionally, in order to make the above backtrace useful,");
-   fprintf(stderr, "\nplease also run the following command to generate a disassembly of your binary:");
-   fprintf(stderr, "\n\n   objdump -d `which htop` > ~/htop.objdump");
-   fprintf(stderr, "\n\nand then attach the file ~/htop.objdump to your bug report.");
-   fprintf(stderr, "\n\nThank you for helping to improve htop!\n\n");
-   #endif
-   #else
-   fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
-   fprintf(stderr, "\nPlease contact your platform package maintainer!\n\n");
-   #endif
-
-   /* Call old sigsegv handler; may be default exit or third party one (e.g. ASAN) */
-   sigaction (SIGSEGV, &old_sigsegv_handler, NULL);
-}

linux/LinuxCRT.h

@@ -1,14 +0,0 @@
-#ifndef HEADER_LinuxCRT
-#define HEADER_LinuxCRT
-/*
-htop - LinuxCRT.h
-(C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
-in the source distribution for its full text.
-*/
-
-#include "Macros.h"
-
-void CRT_handleSIGSEGV(int sgn);
-
-#endif