@Override
			public void modifyLatest(ProgramDB program) {
				try {
					Function func;
					func = getExternalFunction(program, new String[] { "user32.dll", "apples" });
					func.setCustomVariableStorage(true);
					func.removeParameter(0);

					func = getExternalFunction(program, new String[] { "user32.dll", "oranges" });
					func.setCustomVariableStorage(true);
					func.getParameter(0).setComment("LATEST Comment");
				}
				catch (Exception e) {
					e.printStackTrace();
					Assert.fail(e.getMessage());
				}
			}
Remove a register parameter vs change an attribute (name, dt, comment) of a register
parameter.

@throws Exception
Ghidra/Features/Base/src/test.slow/java/ghidra/app/merge/listing/ExternalFunctionMergeManagerTest.java