8340273: Remove CounterHalfLifeTime

Reviewed-by: chagedorn, dholmes

Author: Daniel Lundén

src/hotspot/share/runtime/globals.hpp

@@ -1201,9 +1201,6 @@ const int ObjectAlignmentInBytes = 8;
   product(bool, UseCompiler, true,                                          \
           "Use Just-In-Time compilation")                                   \
                                                                             \
-  develop(intx, CounterHalfLifeTime,    30,                                 \
-          "Half-life time of invocation counters (in seconds)")             \
-                                                                            \
   product(bool, AlwaysCompileLoopMethods, false,                            \
           "When using recompilation, never interpret methods "              \
           "containing loops")                                               \