Skip setting Doxygen options to default values

QUIET defaults to NO, WARNINGS defaults to YES.

Author: turboencabulator

CMakeLists.txt

@@ -627,8 +627,6 @@ if(BUILD_HTML_DOCUMENTATION OR BUILD_MAN_DOCUMENTATION)
     set(DOXYGEN_GENERATE_TREEVIEW YES)
     set(DOXYGEN_DOT_IMAGE_FORMAT svg)
     set(DOXYGEN_INTERACTIVE_SVG YES)
-    set(DOXYGEN_QUIET NO)
-    set(DOXYGEN_WARNINGS YES)
     set(DOXYGEN_WARN_NO_PARAMDOC YES)
     set(DOXYGEN_WARN_LOGFILE doxygen_error)
     set(DOXYGEN_GENERATE_HTML NO)