chore!: remove deprecated Example processor

PiperOrigin-RevId: 880745271

Author: Mateusz Krawiec

core/src/main/java/com/google/adk/agents/LlmAgent.java

@@ -45,8 +45,6 @@
 import com.google.adk.agents.ConfigAgentUtils.ConfigurationException;
 import com.google.adk.codeexecutors.BaseCodeExecutor;
 import com.google.adk.events.Event;
-import com.google.adk.examples.BaseExampleProvider;
-import com.google.adk.examples.Example;
 import com.google.adk.flows.llmflows.AutoFlow;
 import com.google.adk.flows.llmflows.BaseLlmFlow;
 import com.google.adk.flows.llmflows.SingleFlow;
@@ -97,8 +95,6 @@ public enum IncludeContents {
   private final List<Object> toolsUnion;
   private final ImmutableList<BaseToolset> toolsets;
   private final Optional<GenerateContentConfig> generateContentConfig;
-  // TODO: Remove exampleProvider field - examples should only be provided via ExampleTool
-  private final Optional<BaseExampleProvider> exampleProvider;
   private final IncludeContents includeContents;
 
   private final boolean planning;
@@ -132,7 +128,6 @@ protected LlmAgent(Builder builder) {
     this.globalInstruction =
         requireNonNullElse(builder.globalInstruction, new Instruction.Static(""));
     this.generateContentConfig = Optional.ofNullable(builder.generateContentConfig);
-    this.exampleProvider = Optional.ofNullable(builder.exampleProvider);
     this.includeContents = requireNonNullElse(builder.includeContents, IncludeContents.DEFAULT);
     this.planning = builder.planning != null && builder.planning;
     this.maxSteps = Optional.ofNullable(builder.maxSteps);
@@ -180,7 +175,6 @@ public static class Builder extends BaseAgent.Builder<Builder> {
     private Instruction globalInstruction;
     private ImmutableList<Object> toolsUnion;
     private GenerateContentConfig generateContentConfig;
-    private BaseExampleProvider exampleProvider;
     private IncludeContents includeContents;
     private Boolean planning;
     private Integer maxSteps;
@@ -253,26 +247,6 @@ public Builder generateContentConfig(GenerateContentConfig generateContentConfig
       return this;
     }
 
-    // TODO: Remove these example provider methods and only use ExampleTool for providing examples.
-    // Direct example methods should be deprecated in favor of using ExampleTool consistently.
-    @CanIgnoreReturnValue
-    public Builder exampleProvider(BaseExampleProvider exampleProvider) {
-      this.exampleProvider = exampleProvider;
-      return this;
-    }
-
-    @CanIgnoreReturnValue
-    public Builder exampleProvider(List<Example> examples) {
-      this.exampleProvider = (unused) -> examples;
-      return this;
-    }
-
-    @CanIgnoreReturnValue
-    public Builder exampleProvider(Example... examples) {
-      this.exampleProvider = (unused) -> ImmutableList.copyOf(examples);
-      return this;
-    }
-
     @CanIgnoreReturnValue
     public Builder includeContents(IncludeContents includeContents) {
       this.includeContents = includeContents;
@@ -812,11 +786,6 @@ public Optional<GenerateContentConfig> generateContentConfig() {
     return generateContentConfig;
   }
 
-  // TODO: Remove this getter - examples should only be provided via ExampleTool
-  public Optional<BaseExampleProvider> exampleProvider() {
-    return exampleProvider;
-  }
-
   public IncludeContents includeContents() {
     return includeContents;
   }

core/src/main/java/com/google/adk/flows/llmflows/Examples.java

@@ -32,7 +32,6 @@ public class SingleFlow extends BaseLlmFlow {
           new Identity(),
           new Compaction(),
           new Contents(),
-          new Examples(),
           CodeExecution.requestProcessor);
 
   protected static final ImmutableList<ResponseProcessor> RESPONSE_PROCESSORS =