Removing a bunch of unused platform code.

Source/WTF/wtf/Assertions.cpp

 /*
  * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  * Copyright (C) 2011 University of Szeged. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 261 matching lines @@
 {
     static const int framesToShow = 31;
     static const int framesToSkip = 2;
     void* samples[framesToShow + framesToSkip];
     int frames = framesToShow + framesToSkip;
 
     WTFGetBacktrace(samples, &frames);
     WTFPrintBacktrace(samples + framesToSkip, frames - framesToSkip);
 }
 
-#if OS(DARWIN) || OS(LINUX)
-#  if PLATFORM(QT) || PLATFORM(GTK)
-#    if defined(__GLIBC__) && !defined(__UCLIBC__)
-#      define WTF_USE_BACKTRACE_SYMBOLS 1
-#    endif
-#  elif !OS(ANDROID)
-#    define WTF_USE_DLADDR 1
-#  endif
+#if OS(DARWIN) || (OS(LINUX) && !OS(ANDROID))
+#define WTF_USE_DLADDR 1
 #endif
 
 void WTFPrintBacktrace(void** stack, int size)
 {
 #if USE(BACKTRACE_SYMBOLS)
     char** symbols = backtrace_symbols(stack, size);
     if (!symbols)
         return;
 #endif
 
@@ skipping 120 matching lines @@
 
 void WTFLogAlways(const char* format, ...)
 {
     va_list args;
     va_start(args, format);
     vprintf_stderr_with_trailing_newline(format, args);
     va_end(args);
 }
 
 } // extern "C"