Remove Flags

These were reading system properties which caused security warnings in
some cases. Removing to allow us to do a more comprehensive design.

This reverts commit 0a6e9e56f7f3ac7750b38eaba83639ad47a2692f.
This reverts commit 3dba023d4fb47882fa215715c196cfa3be30c098.

Test: test.py --host
Change-Id: I04e8b7a934540b250e6fc56f5aa6ce7f18131d4d
diff --git a/runtime/runtime_options.def b/runtime/runtime_options.def
index 3b6c0fb..1961113 100644
--- a/runtime/runtime_options.def
+++ b/runtime/runtime_options.def
@@ -186,4 +186,10 @@
 // This is to enable/disable Perfetto Java Heap Stack Profiling
 RUNTIME_OPTIONS_KEY (bool,                PerfettoJavaHeapStackProf,      false)
 
+// Whether to dump ART metrics to logcat
+RUNTIME_OPTIONS_KEY (Unit,                WriteMetricsToLog)
+RUNTIME_OPTIONS_KEY (std::string,         WriteMetricsToFile)
+RUNTIME_OPTIONS_KEY (Unit,                DisableFinalMetricsReport)
+RUNTIME_OPTIONS_KEY (unsigned int,        MetricsReportingPeriod)
+
 #undef RUNTIME_OPTIONS_KEY