Drop o3tl::optional wrapper

...now that macOS builds are guaranteed to have std::optional since
358146bbbd1b9775c12770fb5e497b6ec5adfc51 "Bump macOS build baseline to
Xcode 11.3 and macOS 10.14.4".

The change is done mostly mechanically with

> for i in $(git grep -Fl optional); do
>  sed -i -e 's:<o3tl/optional\.hxx>\|\"o3tl/optional\.hxx\":<optional>:' \
>   -e 's/\<o3tl::optional\>/std::optional/g' \
>   -e 's/\<o3tl::make_optional\>/std::make_optional/g' "$i"
> done
> for i in $(git grep -Flw o3tl::nullopt); do
>  sed -i -e 's/\<o3tl::nullopt\>/std::nullopt/g' "$i"
> done

(though that causes some of the resulting

#include <optional>

to appear at different places relative to other includes than if they had been
added manually), plus a few manual modifications:

* adapt bin/find-unneeded-includes
* adapt desktop/IwyuFilter_desktop.yaml
* remove include/o3tl/optional.hxx
* quote resulting "<"/">" as "&lt;"/"&gt;" in officecfg/registry/cppheader.xsl
* and then solenv/clang-format/reformat-formatted-files

Change-Id: I68833d9f7945e57aa2bc703349cbc5a56b342273
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89165
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/writerfilter/source/dmapper/GraphicImport.cxx b/writerfilter/source/dmapper/GraphicImport.cxx
index 96d784f7cad1..c4a5f045b794 100644
--- a/writerfilter/source/dmapper/GraphicImport.cxx
+++ b/writerfilter/source/dmapper/GraphicImport.cxx
@@ -247,10 +247,10 @@ public:
     std::queue<OUString>& m_rPositivePercentages;
     OUString sAnchorId;
     comphelper::SequenceAsHashMap m_aInteropGrabBag;
-    o3tl::optional<sal_Int32> m_oEffectExtentLeft;
-    o3tl::optional<sal_Int32> m_oEffectExtentTop;
-    o3tl::optional<sal_Int32> m_oEffectExtentRight;
-    o3tl::optional<sal_Int32> m_oEffectExtentBottom;
+    std::optional<sal_Int32> m_oEffectExtentLeft;
+    std::optional<sal_Int32> m_oEffectExtentTop;
+    std::optional<sal_Int32> m_oEffectExtentRight;
+    std::optional<sal_Int32> m_oEffectExtentBottom;
 
     GraphicImport_Impl(GraphicImportType eImportType, DomainMapper& rDMapper, std::pair<OUString, OUString>& rPositionOffsets, std::pair<OUString, OUString>& rAligns, std::queue<OUString>& rPositivePercentages) :
         nXSize(0)