Fix qbs build on Windows

Change-Id: I8eea80e0639ca25d234ec36b72ed1cd653fcbae5
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>

src/libs/utils/utils.qbs

@@ -165,6 +165,8 @@ QtcLibrary {
         "treewidgetcolumnstretcher.h",
         "uncommentselection.cpp",
         "uncommentselection.h",
+        "unixutils.cpp",
+        "unixutils.h",
         "utils.qrc",
         "utils_global.h",
         "wizard.cpp",
@@ -211,14 +213,6 @@ QtcLibrary {
         ]
     }
 
-    Group {
-        condition: qbs.targetOS == "linux"
-        files: [
-            "unixutils.cpp",
-            "unixutils.h",
-        ]
-    }
-
     ProductModule {
         Depends { name: "Qt"; submodules: ["concurrent", "widgets" ] }
     }