MTA-2430: Remove unstable tests from FAT plan

Author: Dmytro Aponasenko

dev/tests/functional/tests/app/Magento/CatalogRule/Test/TestCase/CreateCatalogRuleTest.xml

@@ -43,7 +43,7 @@
             <data name="productPrice/0/special" xsi:type="string">5</data>
             <data name="productPrice/0/sub_total" xsi:type="string">5</data>
             <data name="productPrice/0/regular" xsi:type="string">10</data>
-            <data name="tag" xsi:type="string">test_type:acceptance_test</data>
+            <data name="tag" xsi:type="string">test_type:acceptance_test, stable:no</data>
             <constraint name="Magento\CatalogRule\Test\Constraint\AssertCatalogPriceRuleInGrid"/>
             <constraint name="Magento\CatalogRule\Test\Constraint\AssertCatalogPriceRuleNotAppliedCatalogPage"/>
             <constraint name="Magento\CatalogRule\Test\Constraint\AssertCatalogPriceRuleNotAppliedProductPage"/>

dev/tests/functional/tests/app/Magento/GroupedProduct/Test/TestCase/CreateGroupedProductEntityTest.xml

@@ -19,7 +19,7 @@
       <data name="product/data/associated/preset" xsi:type="string">simple_downloadable_virtual</data>
       <data name="product/data/short_description" xsi:type="string">-</data>
       <data name="isRequired" xsi:type="string">-</data>
-      <data name="tag" xsi:type="string">test_type:acceptance_test</data>
+      <data name="tag" xsi:type="string">test_type:acceptance_test, stable:no</data>
       <constraint name="Magento\Catalog\Test\Constraint\AssertProductSaveMessage" next="Magento\Catalog\Test\Constraint\AssertProductVisibleInCategory"/>
       <constraint name="Magento\Catalog\Test\Constraint\AssertProductVisibleInCategory" next="Magento\Catalog\Test\Constraint\AssertProductPage" prev="Magento\Catalog\Test\Constraint\AssertProductSaveMessage"/>
       <constraint name="Magento\Catalog\Test\Constraint\AssertProductPage" prev="Magento\Catalog\Test\Constraint\AssertProductVisibleInCategory"/>

dev/tests/functional/tests/app/Magento/Sales/Test/TestCase/CreateOrderBackendTest.xml

@@ -129,7 +129,7 @@
             <constraint name="Magento\Sales\Test\Constraint\AssertOrderGrandTotal" />
         </variation>
         <variation name="CreateOrderBackendTestVariation7">
-            <data name="tag" xsi:type="string">test_type:acceptance_test</data>
+            <data name="tag" xsi:type="string">test_type:acceptance_test, stable:no</data>
             <data name="description" xsi:type="string">MAGETWO-12520 - Create Order for New Customer in Admin with Offline Payment Method</data>
             <data name="products" xsi:type="string">catalogProductSimple::simple_10_dollar, configurableProduct::with_one_option</data>
             <data name="taxRule" xsi:type="string">us_ca_ny_rule</data>