Bug 1852806 - Remove macros for older Windows SDK from widget/windows…

…/. r=handyman

Depends on D188031

Differential Revision: https://phabricator.services.mozilla.com/D188032

UltraBlame original commit: 4db93c374f9bd3416f4d8f01b175d4c93636e8bd

widget/windows/DirectManipulationOwner.cpp

@@ -157,60 +157,6 @@ VsyncDispatcher
 .
 h
 "
-/
-/
-Direct
-Manipulation
-is
-only
-defined
-for
-Win8
-and
-newer
-.
-#
-if
-defined
-(
-_WIN32_WINNT
-)
-#
-undef
-_WIN32_WINNT
-#
-define
-_WIN32_WINNT
-_WIN32_WINNT_WIN8
-#
-endif
-/
-/
-defined
-(
-_WIN32_WINNT
-)
-#
-if
-defined
-(
-NTDDI_VERSION
-)
-#
-undef
-NTDDI_VERSION
-#
-define
-NTDDI_VERSION
-NTDDI_WIN8
-#
-endif
-/
-/
-defined
-(
-NTDDI_VERSION
-)
 #
 include
 "

widget/windows/JumpListBuilder.h

@@ -106,13 +106,6 @@ windows
 .
 h
 >
-#
-undef
-NTDDI_VERSION
-#
-define
-NTDDI_VERSION
-NTDDI_WIN7
 /
 /
 Needed

widget/windows/KeyboardLayout.cpp

@@ -317,32 +317,6 @@ h
 endif
 /
 /
-In
-WinUser
-.
-h
-MAPVK_VK_TO_VSC_EX
-is
-defined
-only
-when
-WINVER
->
-=
-0x0600
-#
-ifndef
-MAPVK_VK_TO_VSC_EX
-#
-define
-MAPVK_VK_TO_VSC_EX
-(
-4
-)
-#
-endif
-/
-/
 For
 collecting
 other

widget/windows/WinCompositorWindowThread.cpp

@@ -179,17 +179,6 @@ StaticPrefs_apz
 .
 h
 "
-#
-if
-WINVER
-<
-0x0602
-#
-define
-WS_EX_NOREDIRECTIONBITMAP
-0x00200000L
-#
-endif
 namespace
 mozilla
 {

widget/windows/WinHeaderOnlyUtils.h

@@ -328,40 +328,6 @@ elsewhere
 /
 #
 if
-_WIN32_WINNT
-<
-_WIN32_WINNT_WIN8
-typedef
-struct
-_FILE_ID_INFO
-{
-ULONGLONG
-VolumeSerialNumber
-;
-FILE_ID_128
-FileId
-;
-}
-FILE_ID_INFO
-;
-#
-define
-FileIdInfo
-(
-(
-FILE_INFO_BY_HANDLE_CLASS
-)
-18
-)
-#
-endif
-/
-/
-_WIN32_WINNT
-<
-_WIN32_WINNT_WIN8
-#
-if
 !
 defined
 (