Update dependencies from dotnet/corefx (#35076)

* Update dependencies from https://github.com/dotnet/corefx build 20190204.1

This change updates the following dependencies
- Microsoft.NETCore.Platforms - 3.0.0-preview.19104.1

* Update dependencies from https://github.com/dotnet/corefx build 20190204.2

This change updates the following dependencies
- Microsoft.NETCore.Platforms - 3.0.0-preview.19104.2

* Update dependencies from https://github.com/dotnet/corefx build 20190204.3

This change updates the following dependencies
- Microsoft.NETCore.Platforms - 3.0.0-preview.19104.3

* Update dependencies from https://github.com/dotnet/corefx build 20190204.4

This change updates the following dependencies
- Microsoft.NETCore.Platforms - 3.0.0-preview.19104.4

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -14,9 +14,9 @@
       <Uri>https://github.com/dotnet/core-setup</Uri>
       <Sha>373df9c049aaa6daa967f0bea3bac44c065051f0</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.Platforms" Version="3.0.0-preview.19103.4">
+    <Dependency Name="Microsoft.NETCore.Platforms" Version="3.0.0-preview.19104.4">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>634afbde43e7e0f4b40b0a2670cc23873c0c1a83</Sha>
+      <Sha>53a33cf2662ac8c9a45d13067012d80cf0ba6956</Sha>
     </Dependency>
     <Dependency Name="Microsoft.NETCore.Runtime.CoreCLR" Version="3.0.0-preview-27403-72">
       <Uri>https://github.com/dotnet/coreclr</Uri>

eng/Versions.props

@@ -34,7 +34,7 @@
     <MicrosoftNETCoreILAsmPackageVersion>3.0.0-preview-27403-72</MicrosoftNETCoreILAsmPackageVersion>
     <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>3.0.0-preview-27403-72</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
     <!-- Corefx dependencies -->
-    <MicrosoftNETCorePlatformsPackageVersion>3.0.0-preview.19103.4</MicrosoftNETCorePlatformsPackageVersion>
+    <MicrosoftNETCorePlatformsPackageVersion>3.0.0-preview.19104.4</MicrosoftNETCorePlatformsPackageVersion>
     <!-- Standard dependencies -->
     <NETStandardLibraryPackageVersion>2.1.0-prerelease.19074.3</NETStandardLibraryPackageVersion>
   </PropertyGroup>