Update nuspec (#1357)

Author: josefpihrt

src/Analyzers.CodeFixes/Roslynator.Analyzers.nuspec

@@ -9,9 +9,7 @@
     <projectUrl>https://github.com/dotnet/roslynator</projectUrl>
     <icon>icon.png</icon>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>A collection of 200+ analyzers for C#, powered by Roslyn.
-
-  - This package requires Roslyn 3.8 or higher.</description>
+    <description>A collection of 200+ analyzers for C#, powered by Roslyn.</description>
     <summary>A collection of 200+ analyzers for C#, powered by Roslyn.</summary>
     <copyright>Copyright (c) 2016-2023 Josef Pihrt</copyright>
     <tags>Roslyn Analyzer Refactoring Productivity CodeAnalysis C# CSharp</tags>

src/CodeAnalysis.Analyzers.CodeFixes/Roslynator.CodeAnalysis.Analyzers.nuspec

@@ -11,7 +11,6 @@
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>A collection of analyzers for Roslyn API.
 
-  - This package requires Roslyn 3.8 or higher.
   - This package is applicable for projects that reference Roslyn packages (Microsoft.CodeAnalysis*).</description>
     <summary>A collection of analyzers for Roslyn API.</summary>
     <copyright>Copyright (c) 2016-2023 Josef Pihrt</copyright>

src/CodeFixes/Roslynator.CodeFixes.nuspec

@@ -9,10 +9,7 @@
     <projectUrl>https://github.com/dotnet/roslynator</projectUrl>
     <icon>icon.png</icon>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>A collection of code fixes for C# compiler diagnostics (CS....), powered by Roslyn.
-
-  - This package cannot be used with Visual Studio 2015.
-  - This package is dependent on Microsoft.CodeAnalysis.CSharp.Workspaces 2.3.0.</description>
+    <description>A collection of code fixes for C# compiler diagnostics (CS....), powered by Roslyn.</description>
     <summary>A collection of code fixes for C# compiler diagnostics (CS....), powered by Roslyn.</summary>
     <copyright>Copyright (c) 2016-2023 Josef Pihrt</copyright>
     <tags>Roslyn Analyzer Refactoring Productivity CodeAnalysis C# CSharp</tags>

src/Formatting.Analyzers.CodeFixes/Roslynator.Formatting.Analyzers.nuspec

@@ -11,7 +11,6 @@
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>A collection of formatting analyzers, powered by Roslyn.
 
-  - This package requires Roslyn 3.8 or higher.
   - All analyzers are disabled by default.</description>
     <summary>A collection of formatting analyzers, powered by Roslyn.</summary>
     <copyright>Copyright (c) 2016-2023 Josef Pihrt</copyright>