Revert "Tidy gAborting."

Creates infinite loop: b/18674776.

This reverts commit 015b137efb434528173779bc3ec8d72494456254.

Change-Id: I67fe310d2e95ee2ec37bec842be06fb1123b6f4e
diff --git a/runtime/base/logging.cc b/runtime/base/logging.cc
index bdc4cf6..b781d60 100644
--- a/runtime/base/logging.cc
+++ b/runtime/base/logging.cc
@@ -35,6 +35,8 @@
 
 LogVerbosity gLogVerbosity;
 
+unsigned int gAborting = 0;
+
 static LogSeverity gMinimumLogSeverity = INFO;
 static std::unique_ptr<std::string> gCmdLine;
 static std::unique_ptr<std::string> gProgramInvocationName;