Revert "Toggle --incompatible_disable_late_bound_option_defaults flag."

This reverts commit 664e02d.

Author: dslomov

src/main/java/com/google/devtools/build/lib/analysis/config/BuildConfiguration.java

@@ -882,7 +882,7 @@ public enum ConfigsMode {
 
     @Option(
         name = "incompatible_disable_late_bound_option_defaults",
-        defaultValue = "true",
+        defaultValue = "false",
         documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
         effectTags = {OptionEffectTag.LOADING_AND_ANALYSIS, OptionEffectTag.AFFECTS_OUTPUTS},
         metadataTags = {

src/test/java/com/google/devtools/build/lib/rules/config/ConfigSettingTest.java

@@ -252,7 +252,6 @@ public void emptySettings() throws Exception {
    */
   @Test
   public void lateBoundOptionDefaults() throws Exception {
-    useConfiguration("--incompatible_disable_late_bound_option_defaults=false");
     scratch.file("test/BUILD",
         "config_setting(",
         "    name = 'match',",