WinRT: Revert PCRE hacks and disable PCRE JIT

That is what we do on on other "limited" platforms - no reason to leave
in a half-implemented JIT on WinRT.

This reverts commit 05ea0f58aa43f6bbaa11a86aedf04695ff497a7e.
This reverts commit e195822c9342ec869e6d125c816a845cba19ee72.

Change-Id: I608880698d60ab10ecbb2f3ce12ff6c5eaab7eed
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@digia.com>
Fix compile in WinRT page flipper

The m_size variable was dropped in favor of m_windowBounds.

Change-Id: I4d08744c6aa876a63c01dc4de12edb74e7245d21
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>