Remove label-typed starlark build settings (in favor of label_flag and label_setting)

RELNOTES: None.
PiperOrigin-RevId: 247480051

src/main/java/com/google/devtools/build/lib/analysis/skylark/StarlarkConfig.java

diff --git a/src/main/java/com/google/devtools/build/lib/analysis/skylark/StarlarkConfig.java b/src/main/java/com/google/devtools/build/lib/analysis/skylark/StarlarkConfig.java
index e5b1f7c..59e27d2 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/skylark/StarlarkConfig.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/skylark/StarlarkConfig.java
@@ -14,8 +14,6 @@
 
 package com.google.devtools.build.lib.analysis.skylark;
 
-import static com.google.devtools.build.lib.packages.BuildType.LABEL;
-import static com.google.devtools.build.lib.packages.BuildType.LABEL_LIST;
 import static com.google.devtools.build.lib.syntax.Type.BOOLEAN;
 import static com.google.devtools.build.lib.syntax.Type.INTEGER;
 import static com.google.devtools.build.lib.syntax.Type.STRING;
@@ -50,16 +48,6 @@
   }
 
   @Override
-  public BuildSetting labelSetting(Boolean flag) {
-    return new BuildSetting(flag, LABEL);
-  }
-
-  @Override
-  public BuildSetting labelListSetting(Boolean flag) {
-    return new BuildSetting(flag, LABEL_LIST);
-  }
-
-  @Override
   public void repr(SkylarkPrinter printer) {
     printer.append("<config>");
   }

src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkConfigApi.java

diff --git a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkConfigApi.java b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkConfigApi.java
index 446183d..0975f427 100644
--- a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkConfigApi.java
+++ b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/StarlarkConfigApi.java
@@ -110,34 +110,6 @@
       })
   BuildSettingApi stringListSetting(Boolean flag);
 
-  @SkylarkCallable(
-      name = "label",
-      doc = "A label typed build setting",
-      parameters = {
-        @Param(
-            name = FLAG_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            doc = FLAG_ARG_DOC,
-            named = true,
-            positional = false)
-      })
-  BuildSettingApi labelSetting(Boolean flag);
-
-  @SkylarkCallable(
-      name = "label_list",
-      doc = "A label list-typed build setting",
-      parameters = {
-        @Param(
-            name = FLAG_ARG,
-            type = Boolean.class,
-            defaultValue = "False",
-            doc = FLAG_ARG_DOC,
-            named = true,
-            positional = false)
-      })
-  BuildSettingApi labelListSetting(Boolean flag);
-
   /** The API for build setting descriptors. */
   @SkylarkModule(
       name = "BuildSetting",

src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeConfigApi.java

diff --git a/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeConfigApi.java b/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeConfigApi.java
index 4fd7d0b..9ba35ce 100644
--- a/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeConfigApi.java
+++ b/src/main/java/com/google/devtools/build/skydoc/fakebuildapi/FakeConfigApi.java
@@ -41,15 +41,5 @@
   }
 
   @Override
-  public BuildSettingApi labelSetting(Boolean flag) {
-    return new FakeBuildSettingDescriptor();
-  }
-
-  @Override
-  public BuildSettingApi labelListSetting(Boolean flag) {
-    return new FakeBuildSettingDescriptor();
-  }
-
-  @Override
   public void repr(SkylarkPrinter printer) {}
 }