remove unused fn

Author: ianhoffman

src/Codegen/Typing/ConcreteType.hack

@@ -25,11 +25,6 @@ final class ConcreteType extends Type {
     return $this->generics;
   }
 
-  <<__Override>>
-  public function getAlias(): null {
-    return null;
-  }
-
   <<__Override>>
   public function hasAlias(): bool {
     return false;

src/Codegen/Typing/OptionalType.hack

@@ -21,11 +21,6 @@ final class OptionalType extends Type {
     return $this->type->getGenerics();
   }
 
-  <<__Override>>
-  public function getAlias(): ?string {
-    return $this->type->getAlias();
-  }
-
   <<__Override>>
   public function hasAlias(): bool {
     return $this->type->hasAlias();

src/Codegen/Typing/Type.hack

@@ -19,11 +19,6 @@ abstract class Type {
    */
   abstract public function getGenerics(): vec<Type>;
 
-  /**
-   * Alias for this type, if any.
-   */
-  abstract public function getAlias(): ?string;
-
   /**
    * Whether this type has an alias (e.g., is of form <alias> or ?<alias>).
    */

src/Codegen/Typing/TypeAlias.hack

@@ -23,11 +23,6 @@ final class TypeAlias extends Type {
     return $this->getType()->getGenerics();
   }
 
-  <<__Override>>
-  public function getAlias(): string {
-    return $this->alias;
-  }
-
   <<__Override>>
   public function hasAlias(): bool {
     return $this->getType()->hasAlias();
@@ -40,6 +35,6 @@ final class TypeAlias extends Type {
 
   <<__Override>>
   public function render(): string {
-    return $this->getAlias();
+    return $this->alias;
   }
 }