Remove redundant query-expressions.fsproj and integrate files into parent project

Co-authored-by: BillWagner <[email protected]>

Author: Copilot

samples/snippets/fsharp/fssamples.fsproj

@@ -8,6 +8,14 @@
 
     <ItemGroup>
         <Compile Include="tour.fs" />
+        <None Include="query-expressions/basic-query.fs" />
+        <None Include="query-expressions/modern-example.fs" />
+        <None Include="query-expressions/snippet1.fs" />
+        <None Include="query-expressions/snippet2.fs" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="FSharp.Data" Version="6.4.0" />
     </ItemGroup>
 
 </Project>