Fixes a less compilation error: '.no-link a' isn't defined when .email-non-inline() isn't active, so when using '.no-link a', it should be wrapped inside .email-non-inline().

Author: hostep

app/design/frontend/Magento/blank/Magento_Sales/web/css/source/_email.less

@@ -68,8 +68,10 @@
 }
 
 //  Remove address and phone number link color on iOS
-.address-details a {
-    &:extend(.no-link a);
+.email-non-inline() {
+    .address-details a {
+        &:extend(.no-link a);
+    }
 }
 
 .media-width(@extremum, @break) when (@extremum = 'max') and (@break = @screen__xs) {

app/design/frontend/Magento/luma/Magento_Sales/web/css/source/_email.less

@@ -76,8 +76,10 @@
 }
 
 //  Remove address and phone number link color on iOS
-.address-details a {
-    &:extend(.no-link a);
+.email-non-inline() {
+    .address-details a {
+        &:extend(.no-link a);
+    }
 }
 
 .media-width(@extremum, @break) when (@extremum = 'max') and (@break = @screen__xs) {