Replace deprecated BazelJavaBuilder flag '-extra_checks'

Using the flag '-extra_checks' was generating the following error:
BazelJavaBuilder threw exception: -extra_checks is no longer supported; use\
-XepDisableAllChecks to disable Error Prone

tools/lcm.BUILD

@@ -180,7 +180,7 @@ java_library(
     srcs = glob(["lcm-java/lcm/**/*.java"]),
     javacopts = [
         # Suppressed until lcm-proj/lcm#159 is fixed.
-        "-extra_checks:off",
+        "-XepDisableAllChecks",
     ],
     runtime_deps = [
         "@com_jidesoft_jide_oss//jar",