Removed not needed nuget dependencies

QuestPDF.ReportSample/QuestPDF.ReportSample.csproj

@@ -8,7 +8,6 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="DeepCloner" Version="0.10.2" />
         <PackageReference Include="nunit" Version="3.13.2" />
         <PackageReference Include="NUnit3TestAdapter" Version="4.0.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />

QuestPDF.UnitTests/QuestPDF.UnitTests.csproj

@@ -7,7 +7,6 @@
 
     <ItemGroup>
         <PackageReference Include="FluentAssertions" Version="6.1.0" />
-        <PackageReference Include="Moq" Version="4.13.1" />
         <PackageReference Include="nunit" Version="3.13.2" />
         <PackageReference Include="NUnit3TestAdapter" Version="4.0.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.0" />

QuestPDF.UnitTests/ShowOnceTest.cs

@@ -1,5 +1,4 @@
-using Moq;
-using NUnit.Framework;
+using NUnit.Framework;
 using QuestPDF.Drawing.SpacePlan;
 using QuestPDF.Elements;
 using QuestPDF.Infrastructure;