Rollback SkipApplyOptimizations change for Features and BasicEditorFeatures...

Rollback SkipApplyOptimizations change for Features and BasicEditorFeatures (to see if issue with ibcmerge has been fixed)...
***NO_CI***
 (changeset 1406462)

src/EditorFeatures/VisualBasic/BasicEditorFeatures.vbproj

@@ -12,7 +12,6 @@
     <AssemblyName>Microsoft.CodeAnalysis.VisualBasic.EditorFeatures</AssemblyName>
     <SolutionDir Condition="'$(SolutionDir)' == '' OR '$(SolutionDir)' == '*Undefined*'">..\..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
-    <SkipApplyOptimizations>true</SkipApplyOptimizations>
   </PropertyGroup>
   <ItemGroup Label="File References">
     <Reference Include="..\..\..\packages\System.Collections.Immutable.1.1.33-beta\lib\portable-net45+win8+wp8+wpa81\System.Collections.Immutable.dll" />

src/Features/Core/Features.csproj

@@ -13,7 +13,6 @@
     <AssemblyName>Microsoft.CodeAnalysis.Features</AssemblyName>
     <SolutionDir Condition="'$(SolutionDir)' == '' OR '$(SolutionDir)' == '*Undefined*'">..\..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
-    <SkipApplyOptimizations>true</SkipApplyOptimizations>
   </PropertyGroup>
   <ItemGroup Label="File References">
     <Reference Include="..\..\..\packages\System.Reflection.Metadata.1.0.18-beta\lib\portable-net45+win8\System.Reflection.Metadata.dll" />