removes unused line, updates gitignore

.gitignore

@@ -161,3 +161,4 @@ build/temp/
 
 # eof
 /src/Umbraco.Web.UI.Client/TESTS-*.xml
+/src/ApiDocs/api/*

build/build.ps1

@@ -440,12 +440,9 @@
     $DocFxJson = Join-Path -Path $src "\ApiDocs\docfx.json"
     $DocFxSiteOutput = Join-Path -Path $tmp "\_site\*.*"
 	
-	# Build the solution in debug mode
-	$SolutionPath = Join-Path -Path $src -ChildPath "umbraco.sln"
 
 	#restore nuget packages
 	$this.RestoreNuGet()
-
     # run DocFx
     $DocFx = $this.BuildEnv.DocFx
     
@@ -511,6 +508,7 @@
     if ($this.OnError()) { return }
     $this.PostPackageHook()
     if ($this.OnError()) { return }
+
     Write-Host "Done"
   })