Make qTerminate available when QT_NO_EXCEPTIONS flag is set

It seems that QtCore could only be compiled with exceptions enabled.
Therefore it doesn't make sense to keep conditonal code under
QT_NO_EXCEPTIONS in qglobal.cpp. qTerminate may be called whether
exceptions are enabled or not.

Pick-to: 6.1
Fixes: QTBUG-93739
Change-Id: Ie49c10f27cfa75360f018e8638603e6a1791450e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/global/qglobal.cpp

@@ -60,10 +60,8 @@
 #include <stdarg.h>
 #include <string.h>
 
-#ifndef QT_NO_EXCEPTIONS
-#  include <string>
-#  include <exception>
-#endif
+#include <string>
+#include <exception>
 
 #include <errno.h>
 #if defined(Q_CC_MSVC)
@@ -3291,14 +3289,9 @@ void qt_check_pointer(const char *n, int l) noexcept
 */
 void qBadAlloc()
 {
-#ifndef QT_NO_EXCEPTIONS
     QT_THROW(std::bad_alloc());
-#else
-    std::terminate();
-#endif
 }
 
-#ifndef QT_NO_EXCEPTIONS
 /*
    \internal
    Allows you to call std::terminate() without including <exception>.
@@ -3308,7 +3301,6 @@ Q_NORETURN void qTerminate() noexcept
 {
     std::terminate();
 }
-#endif
 
 /*
   The Q_ASSERT macro calls this function when the test fails.

src/corelib/global/qglobal.h

@@ -935,6 +935,7 @@ inline void qt_noop(void) {}
 #  endif
 #endif
 
+Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() noexcept;
 #ifdef QT_NO_EXCEPTIONS
 #  define QT_TRY if (true)
 #  define QT_CATCH(A) else
@@ -946,7 +947,6 @@ inline void qt_noop(void) {}
 #  define QT_CATCH(A) catch (A)
 #  define QT_THROW(A) throw A
 #  define QT_RETHROW throw
-Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() noexcept;
 #  ifdef Q_COMPILER_NOEXCEPT
 #    define QT_TERMINATE_ON_EXCEPTION(expr) do { expr; } while (false)
 #  else