Remove CompositeRunfilesSupplier.of() and CompositeRunfilesSupplier.f…

…romSuppliers().

These methods are not called from anywhere.

RELNOTES: None.
PiperOrigin-RevId: 607305445
Change-Id: I4feee8fddaab68bb594f0165af51455e65b50697

src/main/java/com/google/devtools/build/lib/actions/CompositeRunfilesSupplier.java

@@ -14,16 +14,9 @@
 
 package com.google.devtools.build.lib.actions;
 
-import static com.google.common.collect.ImmutableList.toImmutableList;
 
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Iterables;
-import com.google.devtools.build.lib.vfs.PathFragment;
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
 
 /** A {@link RunfilesSupplier} implementation for composing multiple instances. */
 public final class CompositeRunfilesSupplier implements RunfilesSupplier {
@@ -43,45 +36,6 @@ public static RunfilesSupplier fromRunfilesTrees(Collection<RunfilesTree> runfil
     return new CompositeRunfilesSupplier(ImmutableList.copyOf(runfilesTrees));
   }
 
-  /**
-   * Create a composite {@link RunfilesSupplier} from a collection of suppliers. Suppliers earlier
-   * in the collection take precedence over later suppliers.
-   */
-  public static RunfilesSupplier fromSuppliers(Collection<RunfilesSupplier> suppliers) {
-    ImmutableList<RunfilesSupplier> nonEmptySuppliers =
-        suppliers.stream()
-            .filter((s) -> s != EmptyRunfilesSupplier.INSTANCE)
-            .collect(toImmutableList());
-
-    if (nonEmptySuppliers.isEmpty()) {
-      return EmptyRunfilesSupplier.INSTANCE;
-    }
-
-    if (nonEmptySuppliers.size() == 1) {
-      return Iterables.getOnlyElement(nonEmptySuppliers);
-    }
-
-    Set<PathFragment> execPaths = new HashSet<>();
-    List<RunfilesTree> trees = new ArrayList<>();
-
-    for (RunfilesSupplier supplier : nonEmptySuppliers) {
-      for (RunfilesTree tree : supplier.getRunfilesTrees()) {
-        if (execPaths.add(tree.getExecPath())) {
-          trees.add(tree);
-        }
-      }
-    }
-
-    return new CompositeRunfilesSupplier(ImmutableList.copyOf(trees));
-  }
-
-  /**
-   * Convenience method for creating a composite {@link RunfilesSupplier} from two other suppliers.
-   */
-  public static RunfilesSupplier of(RunfilesSupplier supplier1, RunfilesSupplier supplier2) {
-    return fromSuppliers(ImmutableList.of(supplier1, supplier2));
-  }
-
   /**
    * Create an instance combining all of {@code suppliers}, with earlier elements taking precedence.
    */