COMP: Address TextureFeatures review concerns

CMakeLists.txt: drop the standalone-build branch
(if(NOT ITK_SOURCE_DIR) ... else()); only the ITK-embedded path is
load-bearing in-tree.

itk-module.cmake: replace the boilerplate-comments block with a
DOCUMENTATION variable describing the module's purpose, and pass
that variable through to DESCRIPTION.

LICENSE: remove the per-module copy; ITK's root LICENSE applies.

Author: hjmjohnson

Modules/Filtering/TextureFeatures/CMakeLists.txt

@@ -1,32 +1,3 @@
 project(TextureFeatures)
 
-if(NOT ITK_SOURCE_DIR)
-  find_package(ITK 4.10 REQUIRED)
-  list(APPEND CMAKE_MODULE_PATH ${ITK_CMAKE_DIR})
-
-  if(SKBUILD)
-    set(
-      PY_SITE_PACKAGES_PATH
-      ${CMAKE_INSTALL_PREFIX}
-      CACHE PATH
-      "The install
-    prefix for python package contents"
-    )
-    install(
-      CODE
-        "
-      unset(CMAKE_INSTALL_COMPONENT)
-      set(COMPONENT \"PythonWheelRuntimeLibraries\")
-      set(CMAKE_INSTALL_DO_STRIP 1)
-      include\(\"${PROJECT_BINARY_DIR}/cmake_install.cmake\")
-      unset(CMAKE_INSTALL_COMPONENT)
-      return()
-    "
-    )
-  endif()
-
-  include(ITKModuleExternal)
-  include_directories(${ITK_INCLUDE_DIRS})
-else()
-  itk_module_impl()
-endif()
+itk_module_impl()

Modules/Filtering/TextureFeatures/LICENSE

@@ -1,13 +1,10 @@
-# the top-level README is used for describing this module, just
-# re-used it for documentation here
-# itk_module() defines the module dependencies in ModuleTemplate
-# ModuleTemplate depends on ITKCommon
-# The testing module in ModuleTemplate depends on ITKTestKernel
-# and ITKMetaIO(besides ModuleTemplate and ITKCore)
-# By convention those modules outside of ITK are not prefixed with
-# ITK.
+set(
+  DOCUMENTATION
+  "N-dimensional textural feature image filters: first-order,
+run-length, and co-occurrence (GLCM) features computed over a
+sliding window for radiomics and computer-vision pipelines."
+)
 
-# define the dependencies of the include module and the tests
 itk_module(
   TextureFeatures
   DEPENDS
@@ -21,6 +18,6 @@ itk_module(
     ITKImageIntensity
     ITKImageNoise
     ITKGoogleTest
-  DESCRIPTION "Module ingested from upstream."
+  DESCRIPTION "${DOCUMENTATION}"
   EXCLUDE_FROM_DEFAULT
 )