Remove duplicated logic in both branches

Author: MihaZupan

src/libraries/System.Private.Uri/src/System/UriExt.cs

@@ -123,24 +123,12 @@ private void CreateThis(string? uri, bool dontEscape, UriKind uriKind, in UriCre
                         return GetException(err);
                     }
                 }
-                else if (uriKind == UriKind.Relative)
+
+                if (uriKind == UriKind.Relative)
                 {
                     // Here we know that we can create an absolute Uri, but the user has requested only a relative one
                     return GetException(ParsingError.CannotCreateRelative);
                 }
-
-                if (hasUnicode)
-                {
-                    // In this scenario we need to parse the whole string
-                    try
-                    {
-                        EnsureParseRemaining();
-                    }
-                    catch (UriFormatException ex)
-                    {
-                        return ex;
-                    }
-                }
             }
             else
             {
@@ -170,18 +158,18 @@ private void CreateThis(string? uri, bool dontEscape, UriKind uriKind, in UriCre
                     // relative one
                     return GetException(ParsingError.CannotCreateRelative);
                 }
+            }
 
-                if (hasUnicode)
+            if (hasUnicode)
+            {
+                // In this scenario we need to parse the whole string
+                try
                 {
-                    // In this scenario we need to parse the whole string
-                    try
-                    {
-                        EnsureParseRemaining();
-                    }
-                    catch (UriFormatException ex)
-                    {
-                        return ex;
-                    }
+                    EnsureParseRemaining();
+                }
+                catch (UriFormatException ex)
+                {
+                    return ex;
                 }
             }