Revert of [Compiler] Track Ignition background compilation separately in RuntimeStats.

tools/callstats.py

Index: tools/callstats.py
diff --git a/tools/callstats.py b/tools/callstats.py
index 9c9f79207012a3a5a8f684781bce645d298204da..fd717a33861a65f3c67c71a6eb4759822455e766 100755
--- a/tools/callstats.py
+++ b/tools/callstats.py
@@ -349,7 +349,6 @@
         ('Group-IC', re.compile(".*IC_.*")),
         ('Group-Optimize',
          re.compile("StackGuard|.*Optimize.*|.*Deoptimize.*|Recompile.*")),
-        ('Group-CompileBackground', re.compile("(.*CompileBackground.*)")),
         ('Group-Compile', re.compile("(^Compile.*)|(.*_Compile.*)")),
         ('Group-ParseBackground', re.compile(".*ParseBackground.*")),
         ('Group-Parse', re.compile(".*Parse.*")),
@@ -403,13 +402,6 @@
       group_data['time'] += entries[group_name]['time']
       group_data['count'] += entries[group_name]['count']
     entries['Group-Parse-Total'] = group_data
-    # Calculate the Compile-Total group
-    group_data = { 'time': 0, 'count': 0 }
-    for group_name, regexp in groups:
-      if not group_name.startswith('Group-Compile'): continue
-      group_data['time'] += entries[group_name]['time']
-      group_data['count'] += entries[group_name]['count']
-    entries['Group-Compile-Total'] = group_data
     # Append the sums as single entries to domain.
     for key in entries:
       if key not in domain: domain[key] = { 'time_list': [], 'count_list': [] }