Remove explicit sta.js includes

...harness/propertyhelper-verifyenumerable-not-enumerable.js

...ness/propertyhelper-verifynotconfigurable-configurable.js

...tyhelper-verifynotconfigurable-not-configurable-strict.js

...s/propertyhelper-verifynotenumerable-enumerable-symbol.js

.../harness/propertyhelper-verifynotenumerable-enumerable.js

test/harness/propertyhelper-verifynotwritable-writable.js

.../propertyhelper-verifywritable-not-writable-not-strict.js

...ness/propertyhelper-verifywritable-not-writable-strict.js

test/harness/sta-error.js

test/harness/sta-override-error.js

test/harness/sta.js

test/harness/verifyProperty-arguments.js

test/harness/verifyProperty-desc-is-not-object.js

test/harness/verifyProperty-noproperty.js

test/harness/verifyProperty-undefined-desc.js

test/harness/verifyProperty-value-error.js