Soy parser: Remove unused imports from SoyFileParser
@@ -45,7 +45,6 @@ package com.google.template.soy.soyparse;
import com.google.common.base.CharMatcher;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
-import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.base.Predicates;
import com.google.common.collect.FluentIterable;
@@ -57,7 +56,6 @@ import com.google.template.soy.base.internal.Identifier;
import com.google.template.soy.base.internal.IdGenerator;
import com.google.template.soy.base.internal.LegacyInternalSyntaxException;
import com.google.template.soy.base.internal.SoyFileKind;
-import com.google.template.soy.base.internal.SoyFileSupplier.Version;
import com.google.template.soy.error.ErrorReporter.Checkpoint;
import com.google.template.soy.error.ErrorReporter;
import com.google.template.soy.error.SoyErrorKind;
