Simplify VersionInfo code, avoid hitting sandbox IPC constantly on Windows

chrome/browser/sync/about_sync_util.cc

Index: chrome/browser/sync/about_sync_util.cc
diff --git a/chrome/browser/sync/about_sync_util.cc b/chrome/browser/sync/about_sync_util.cc
index 055fd23c0bb832db0672facbcbfcf3f2de364da6..3cb86ac95235e8c7cfee9d5b11e9384afec5fa2c 100644
--- a/chrome/browser/sync/about_sync_util.cc
+++ b/chrome/browser/sync/about_sync_util.cc
@@ -143,8 +143,6 @@ std::string GetVersionString() {
   // Build a version string that matches MakeUserAgentForSyncApi with the
   // addition of channel info and proper OS names.
   chrome::VersionInfo chrome_version;
-  if (!chrome_version.is_valid())
-    return "invalid";
   // GetVersionStringModifier returns empty string for stable channel or
   // unofficial builds, the channel string otherwise. We want to have "-devel"
   // for unofficial builds only.