Revert of Add a probability to Alternate-Protocol support.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index c43955820841858110c2ca9cecdf9ddd5406e78b..167c46307c1d169188e88f47c7c34f88fbf51d4d 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -51,12 +51,6 @@
 // By default, an https page cannot run JavaScript, CSS or plug-ins from http
 // URLs. This provides an override to get the old insecure behavior.
 const char kAllowRunningInsecureContent[]   = "allow-running-insecure-content";
-
-// Specifies the threshold to be used when determining of an Alternate-Protocol
-// advertisement will be honored. If the advertised probability is larger
-// than the threshold, then it will be honored.
-const char kAlternateProtocolProbabilityThreshold[] =
-    "alternate-protocol-probability-threshold";
 
 // Prevents Chrome from requiring authorization to run certain widely installed
 // but less commonly used plug-ins.