Bug 1614923 - Disable the FOGotype. r=chutten

This removes calling the initializer on the fog crate.
It leaves everything else in tact, including:

* Leaves the fog crate in tree, including its dependencies such as glean-preview
* Leaves the "fogotype" feature on gkrust-shared in place, ensuring glean is still compiled on nightly
  * it's not used, so it should just get removed at link time
* Leaves the build config untouched (which sets the `MOZ_FOGOTYPE` definition)

Differential Revision: https://phabricator.services.mozilla.com/D62579

--HG--
extra : moz-landing-system : lando

toolkit/components/telemetry/core/Telemetry.cpp

@@ -1167,57 +1167,6 @@ TelemetryImpl::GetIsOfficialTelemetry(bool* ret) {
   return NS_OK;
 }
 
-#if defined(MOZ_FOGOTYPE)
-// The FOGotype API is implemented in Rust and exposed to C++ via a set of
-// C functions with the "fog_" prefix.
-// See toolkit/components/telemetry/fog/*.
-extern "C" {
-nsresult fog_init(const nsAString* dataDir, const nsAString* pingsenderPath);
-}
-
-static void internal_initFogotype(bool aUseTelemetry) {
-  nsCOMPtr<nsIFile> dataDir;
-  nsresult rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(dataDir));
-  if (NS_FAILED(rv)) {
-    NS_WARNING("Couldn't get temp dir. Bailing on FOGotype.");
-    return;
-  }
-
-  rv = dataDir->AppendNative(nsPrintfCString("fogotype.%d", base::GetCurrentProcId()));
-  if (NS_FAILED(rv)) {
-    NS_WARNING("Couldn't get data dir. Bailing on FOGotype.");
-    return;
-  }
-
-  nsAutoString path;
-  rv = dataDir->GetPath(path);
-  if (NS_FAILED(rv)) {
-    NS_WARNING("Couldn't get data path. Bailing on FOGotype.");
-    return;
-  }
-
-  nsCOMPtr<nsIFile> pingsender;
-  rv = NS_GetSpecialDirectory(NS_GRE_BIN_DIR, getter_AddRefs(pingsender));
-  if (NS_FAILED(rv)) {
-    NS_WARNING("Couldn't find pingsender. Bailing on FOGotype");
-    return;
-  }
-#  ifdef XP_WIN
-  pingsender->Append(NS_LITERAL_STRING("pingsender.exe"));
-#  else
-  pingsender->Append(NS_LITERAL_STRING("pingsender"));
-#  endif
-  nsAutoString pingsenderPath;
-  rv = pingsender->GetPath(pingsenderPath);
-  if (NS_FAILED(rv)) {
-    NS_WARNING("Couldn't get pingsender path. Bailing on FOGotype.");
-    return;
-  }
-
-  Unused << NS_WARN_IF(NS_FAILED(fog_init(&path, &pingsenderPath)));
-}
-#endif  // defined(MOZ_FOGOTYPE)
-
 already_AddRefed<nsITelemetry> TelemetryImpl::CreateTelemetryInstance() {
   {
     auto lock = sTelemetry.Lock();
@@ -1275,12 +1224,6 @@ already_AddRefed<nsITelemetry> TelemetryImpl::CreateTelemetryInstance() {
   }
 #endif
 
-#if defined(MOZ_FOGOTYPE)
-  if (XRE_IsParentProcess()) {
-    internal_initFogotype(useTelemetry);
-  }
-#endif
-
   return ret.forget();
 }