RFR (trivial): 8217388: Remove develop flag ProfilerPCTickThreshold

[Claes Redestad]

Hi,

this flag does not spark joy.

Bug: https://bugs.openjdk.java.net/browse/JDK-8217388
Patch:
diff -r 0a48b128e3d4 src/hotspot/share/runtime/globals.hpp
--- a/src/hotspot/share/runtime/globals.hpp	Fri Jan 18 16:49:35 2019 +0100
+++ b/src/hotspot/share/runtime/globals.hpp	Fri Jan 18 17:07:38 2019 +0100
@@ -1670,9 +1670,6 @@
    develop(intx, DontYieldALotInterval,    10, 
      \
            "Interval between which yields will be dropped 
(milliseconds)")   \
 
      \
-  develop(intx, ProfilerPCTickThreshold,    15, 
     \
-          "Number of ticks in a PC buckets to be a hotspot") 
     \
- 
     \
    notproduct(intx, DeoptimizeALotInterval,     5, 
      \
            "Number of exits until DeoptimizeALot kicks in") 
      \
 
      \

/Claes