doxygen: ignore the static keyword

Our (many) static inline helpers are shown with the static prefix in the list
of fonctions of modules, and later with the static prefix and static+inline
labels in their own subsection. See doxygen/doxygen#11419

Users are confused by this static without inline prefix, and we don't have
any use of static outside static inline in the doc, so just ignore static
entirely.

Signed-off-by: Brice Goglin <[email protected]>

Author: bgoglin

doc/doxygen.cfg

@@ -2301,6 +2301,7 @@ PREDEFINED             = hwloc_thread_t=hwloc_thread_t \
                          __hwloc_attribute_malloc= \
                          __hwloc_attribute_pure= \
                          __hwloc_attribute_unused= \
+                         static= \
                          HWLOC_DECLSPEC=
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this