[grid] Removing default value for max-threads to avoid noisy warnings due to deprecation.

[skip ci]

Author: diemol

java/src/org/openqa/selenium/grid/server/BaseServerFlags.java

@@ -17,8 +17,6 @@
 
 package org.openqa.selenium.grid.server;
 
-import static org.openqa.selenium.grid.config.StandardGridRoles.HTTPD_ROLE;
-
 import com.google.auto.service.AutoService;
 
 import com.beust.jcommander.Parameter;
@@ -31,6 +29,8 @@
 import java.util.Collections;
 import java.util.Set;
 
+import static org.openqa.selenium.grid.config.StandardGridRoles.HTTPD_ROLE;
+
 @AutoService(HasRoles.class)
 public class BaseServerFlags implements HasRoles {
 
@@ -65,7 +65,7 @@ public class BaseServerFlags implements HasRoles {
                   + "Default value is: (available processors) * 3.",
     names = "--max-threads")
   @ConfigValue(section = SERVER_SECTION, name = "max-threads", example = "12")
-  private int maxThreads = Runtime.getRuntime().availableProcessors() * 3;
+  private int maxThreads;
 
   @Parameter(
     names = "--allow-cors",