ENGCOM-8032: Revert 'Add validation phone field on checkout page' #29682

 - Merge Pull Request #29682 from magento/magento2:revert-27537-validate-phone-field-on-checkout
 - Merged commits:
   1. 653650f

Author: magento-engcom-team

app/code/Magento/Checkout/Block/Checkout/LayoutProcessor.php

@@ -351,9 +351,6 @@ private function getBillingAddressComponent($paymentCode, $elements)
                                 ],
                             ],
                             'telephone' => [
-                                'validation' => [
-                                    'validate-phoneStrict' => 0,
-                                ],
                                 'config' => [
                                     'tooltip' => [
                                         'description' => __('For delivery questions.'),

app/code/Magento/Checkout/Test/Mftf/Test/StorefrontOnePageCheckoutPhoneValidationTest.xml

@@ -223,9 +223,6 @@
                                                                         </item>
                                                                     </item>
                                                                     <item name="telephone" xsi:type="array">
-                                                                        <item name="validation" xsi:type="array">
-                                                                            <item name="validate-phoneStrict" xsi:type="number">0</item>
-                                                                        </item>
                                                                         <item name="config" xsi:type="array">
                                                                             <item name="tooltip" xsi:type="array">
                                                                                 <item name="description" xsi:type="string" translate="true">For delivery questions.</item>

app/code/Magento/Checkout/view/frontend/layout/checkout_index_index.xml

@@ -19,7 +19,7 @@
             <item>Bld D</item>
         </array>
         <data key="company">Magento</data>
-        <data key="telephone">123-456-7890</data>
+        <data key="telephone">1234568910</data>
         <data key="fax">1234568910</data>
         <data key="postcode">78729</data>
         <data key="city">Austin</data>
@@ -172,7 +172,7 @@
         <data key="city">London</data>
         <data key="postcode">SE1 7RW</data>
         <data key="country_id">GB</data>
-        <data key="telephone">444-444-4444</data>
+        <data key="telephone">444-44-444-44</data>
     </entity>
     <entity name="US_Address_Utah" type="address">
         <data key="firstname">John</data>
@@ -227,7 +227,7 @@
         <data key="firstname">John</data>
         <data key="lastname">Doe</data>
         <data key="company">Magento</data>
-        <data key="telephone">888-777-7890</data>
+        <data key="telephone">0123456789-02134567</data>
         <array key="street">
             <item>172, Westminster Bridge Rd</item>
             <item>7700 xyz street</item>
@@ -305,7 +305,7 @@
         <data key="firstname">Jane</data>
         <data key="lastname">Miller</data>
         <data key="company">Magento</data>
-        <data key="telephone">123-456-7899</data>
+        <data key="telephone">44 20 7123 1234</data>
         <array key="street">
             <item>1 London Bridge Street</item>
         </array>