remove needless guard clause for HTML_OPTS

Author: tevio

cmake/script/CoverageInclude.cmake.in

@@ -29,12 +29,8 @@ find_program(GENHTML_EXECUTABLE genhtml REQUIRED)
 # If HTML_OPTS is not provided at all, implicitly pass LCOV_OPTS to genhtml.
 # If HTML_OPTS is provided but empty (e.g. -DHTML_OPTS=""), use an empty list
 # and do NOT inherit LCOV_OPTS.
-set(_HTML_OPTS_WAS_DEFINED FALSE)
 if(DEFINED HTML_OPTS)
-  set(_HTML_OPTS_WAS_DEFINED TRUE)
-endif()
-separate_arguments(HTML_OPTS)
-if(_HTML_OPTS_WAS_DEFINED)
+  separate_arguments(HTML_OPTS)
   set(GENHTML_OPTS ${HTML_OPTS})
 else()
   set(GENHTML_OPTS ${LCOV_OPTS})