Remove library description and keywords from footprint comparator

These properties are not displayed or editable in
the board editor, it makes no sense to report them
as having changed in the library.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/19259

pcbnew/drc/drc_test_provider_library_parity.cpp

@@ -603,9 +603,6 @@ bool FOOTPRINT::FootprintNeedsUpdate( const FOOTPRINT* aLibFP, int aCompareFlags
 
     aLibFP = temp.get();
 
-    TEST( GetLibDescription(), aLibFP->GetLibDescription(), _( "Footprint descriptions differ." ) );
-    TEST( GetKeywords(), aLibFP->GetKeywords(), _( "Footprint keywords differ." ) );
-
 #define TEST_ATTR( a, b, attr, msg ) TEST( ( a & attr ), ( b & attr ), msg )
 
     TEST_ATTR( GetAttributes(), aLibFP->GetAttributes(), (FP_THROUGH_HOLE | FP_SMD),