Disable all annotation processors

Some unused annotation processors caused build-time failures. Instead,
we should just be explicit about which annotation processors we will use
(if any) with additional command-line flags.

Relates #19919

buildSrc/src/main/groovy/org/elasticsearch/gradle/BuildPlugin.groovy

@@ -385,7 +385,7 @@ class BuildPlugin implements Plugin<Project> {
                  * -serial because we don't use java serialization.
                  */
                 // don't even think about passing args with -J-xxx, oracle will ask you to submit a bug report :)
-                options.compilerArgs << '-Werror' << '-Xlint:all,-path,-serial,-options,-deprecation' << '-Xdoclint:all' << '-Xdoclint:-missing'
+                options.compilerArgs << '-Werror' << '-proc:none' << '-Xlint:all,-path,-serial,-options,-deprecation' << '-Xdoclint:all' << '-Xdoclint:-missing'
                 options.encoding = 'UTF-8'
                 //options.incremental = true