8364556: JFR: Disable SymbolTableStatistics and StringTableStatistics in default.jfc

Backport-of: 7698c373a684235812c9dc11edd751059f9e8e81

Author: GoeLin

src/jdk.jfr/share/conf/jfr/default.jfc

@@ -28,12 +28,12 @@
     </event>
 
     <event name="jdk.SymbolTableStatistics">
-      <setting name="enabled">true</setting>
+      <setting name="enabled">false</setting>
       <setting name="period">10 s</setting>
     </event>
 
     <event name="jdk.StringTableStatistics">
-      <setting name="enabled">true</setting>
+      <setting name="enabled">false</setting>
       <setting name="period">10 s</setting>
     </event>