Remove obsolete workaround

Author: olpaw

substratevm/src/com.oracle.svm.driver/src/com/oracle/svm/driver/NativeImage.java

@@ -1525,7 +1525,6 @@ private static void deprecatedSanitizeJVMEnvironment(Map<String, String> environ
 
     private static void sanitizeJVMEnvironment(Map<String, String> environment, Map<String, String> imageBuilderEnvironment) {
         Set<String> requiredKeys = new HashSet<>(List.of("PATH", "PWD", "HOME", "LANG", "LC_ALL"));
-        requiredKeys.add("SRCHOME"); /* Remove once GR-44676 is fixed */
         Function<String, String> keyMapper;
         if (OS.WINDOWS.isCurrent()) {
             requiredKeys.addAll(List.of("TEMP", "INCLUDE", "LIB"));