Revert "Ignore additional warnings when compiling with newer JDKs"

This reverts commit 4eab6a9.

Author: mark-vieira

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/ElasticsearchJavaBasePlugin.java

@@ -125,7 +125,7 @@ public static void configureCompile(Project project) {
             // TODO Discuss moving compileOptions.getCompilerArgs() to use provider api with Gradle team.
             List<String> compilerArgs = compileOptions.getCompilerArgs();
             compilerArgs.add("-Werror");
-            compilerArgs.add("-Xlint:all,-path,-serial,-options,-deprecation,-try,-this-escape,-lossy-conversions");
+            compilerArgs.add("-Xlint:all,-path,-serial,-options,-deprecation,-try");
             compilerArgs.add("-Xdoclint:all");
             compilerArgs.add("-Xdoclint:-missing");
             compileOptions.setEncoding("UTF-8");