Remove symbols nuget packages

Instead use SourceLink only.

Author: angularsen

UnitsNet.Serialization.JsonNet/UnitsNet.Serialization.JsonNet.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <!-- NuGet properties -->
   <PropertyGroup>
     <PackageId>UnitsNet.Serialization.JsonNet</PackageId>
@@ -7,8 +7,6 @@
     <Title>Units.NET Serialization with Json.NET</Title>
     <Description>A helper library for serializing and deserializing types in Units.NET using Json.NET.</Description>
     <Copyright>Copyright (c) 2015 Andreas Gullberg Larsen</Copyright>
-    <IncludeSymbols>true</IncludeSymbols>
-    <IncludeSource>true</IncludeSource>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <RepositoryUrl>https://github.com/angularsen/UnitsNet</RepositoryUrl>
     <PackageIconUrl>https://raw.githubusercontent.com/angularsen/UnitsNet/ce85185429be345d77eb2ce09c99d59cc9ab8aed/Docs/Images/logo-32.png</PackageIconUrl>

UnitsNet/UnitsNet.csproj

@@ -7,8 +7,6 @@
     <Title>Units.NET</Title>
     <Description>Get all the common units of measurement and the conversions between them. It is light-weight and thoroughly tested.</Description>
     <Copyright>Copyright (c) 2013 Andreas Gullberg Larsen</Copyright>
-    <IncludeSymbols>true</IncludeSymbols>
-    <IncludeSource>true</IncludeSource>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <RepositoryUrl>https://github.com/angularsen/UnitsNet</RepositoryUrl>
     <PackageIconUrl>https://raw.githubusercontent.com/angularsen/UnitsNet/ce85185429be345d77eb2ce09c99d59cc9ab8aed/Docs/Images/logo-32.png</PackageIconUrl>