[GR-64967] Remove "forceJavac" where it was added due to insufficient support from ECJ. #22267

Job	Run time
/substratevm on Windows	8m 8s
/substratevm build,helloworld,native_unittests JDKlatest	20m 51s
/substratevm hellomodule JDKlatest	4m 55s
/substratevm style,fullbuild JDKlatest	12m 3s
/compiler build,bootstraplite JDKlatest	4m 22s
/espresso style,fullbuild JDK21	14m 38s
/truffle style,fullbuild,fulltest JDK21	33m 46s
/sulong style,fullbuild,sulongBasic JDK21	22m 9s
/vm build,sulong JDKlatest	28m 57s
/vm build JDKlatest	16m 27s
/compiler style,fullbuild,test JDKlatest	13m 26s
/substratevm build,debuginfotest JDKlatest	23m 12s
	3h 22m 54s

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