Move zipkin and jaeger span source to disable from metrics. (#2842)

oap-server/generate-tool-grammar/src/main/antlr4/org/apache/skywalking/oal/tool/grammar/OALParser.g4

@@ -54,13 +54,12 @@ source
       SRC_SERVICE_RELATION | SRC_SERVICE_INSTANCE_RELATION | SRC_ENDPOINT_RELATION |
       SRC_SERVICE_INSTANCE_JVM_CPU | SRC_SERVICE_INSTANCE_JVM_MEMORY | SRC_SERVICE_INSTANCE_JVM_MEMORY_POOL | SRC_SERVICE_INSTANCE_JVM_GC |// JVM source of service instance
       SRC_SERVICE_INSTANCE_CLR_CPU | SRC_SERVICE_INSTANCE_CLR_GC | SRC_SERVICE_INSTANCE_CLR_THREAD |
-      SRC_ENVOY_INSTANCE_METRIC |
-      SRC_ZIPKIN_SPAN | SRC_JAEGER_SPAN
+      SRC_ENVOY_INSTANCE_METRIC
     ;
 
 disableSource
     : SRC_SEGMENT | SRC_TOP_N_DB_STATEMENT | SRC_ENDPOINT_RELATION_SERVER_SIDE | SRC_SERVICE_RELATION_SERVER_SIDE |
-      SRC_SERVICE_RELATION_CLIENT_SIDE | SRC_ALARM_RECORD | SRC_HTTP_ACCESS_LOG
+      SRC_SERVICE_RELATION_CLIENT_SIDE | SRC_ALARM_RECORD | SRC_HTTP_ACCESS_LOG | SRC_ZIPKIN_SPAN | SRC_JAEGER_SPAN
     ;
 
 sourceAttribute