Remove an unused enum value.
When looking up where the unfiltered_compile_flags module was referenced, I noticed that this entry was redundant with UNFILTERED_COMPILE_FLAGS_FEATURE_NAME in CppRuleClasses.java, and is not used anywhere.
@@ -42,8 +42,6 @@ public enum CompileBuildVariables {
* --conlyopt options.
*/
USER_COMPILE_FLAGS("user_compile_flags"),
- /** Variable for flags coming from unfiltered_cxx_flag CROSSTOOL fields. */
- UNFILTERED_COMPILE_FLAGS("unfiltered_compile_flags"),
/** Variable for the path to the compilation output file. */
OUTPUT_FILE("output_file"),
/** Variable for the dependency file path */
