build sqlite3 and lzma on Windows anyway

and use the same config.h in all platforms.
Compiling these libraries only takes a few seconds
so no need to exclude Windows here
it should also fix the win arm64 build

This patch reverts

commit e4421ce01d
Author: Xisco Fauli <xiscofauli@libreoffice.org>
Date:   Mon Nov 10 22:35:22 2025 +0100

    sqlite3: don't create a static library on Windows

and part of

commit 1cb84d60d9
Author: Xisco Fauli <xiscofauli@libreoffice.org>
Date:   Thu Oct 30 20:11:23 2025 +0100

    external: add lzma

Change-Id: Ia66242d4fef78cf8d99f853db4c9eee2e24c62ea
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/194023
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>

RepositoryExternal.mk

@@ -146,7 +146,6 @@ $(eval $(call gb_Helper_register_libraries_for_install,OOOLIBS,ooo,\
 ))
 endif
 
-ifneq ($(OS),WNT)
 ifneq ($(filter LZMA,$(BUILD_TYPE)),)
 ifneq ($(SYSTEM_LZMA),)
 
@@ -226,7 +225,6 @@ endef
 
 endif # SYSTEM_SQLITE3
 endif # SQLITE3
-endif # !WNT
 
 ifeq (SANE,$(filter SANE,$(BUILD_TYPE)))