Remove slapos.recipe.cmmi way of having conditional sections

It was broken because it conflicts with buildout,
which has similar feature.

slapos/recipe/cmmi/README.rst

@@ -214,29 +214,6 @@ Supported options
   both ``environment-section`` and ``environment`` are provided the values from
   the former will be overridden by the latter allowing per-part customization.
 
-The recipe uses separated part to support custom options in different
-platforms. These platform's part has a pattern "part:platform" or
-"part:platform:arch".
-
-arch could be 'x86', 'amd64', 'ia64' ... which equals
-platform.machine().
-
-platform could be 'linux', 'cygwin', 'macos', 'sunos', 'freebsd',
-'netbsd', 'unixware' ... which equals a formatted sys.platform.
-
-For example::
-
-  [bzip2]
-  recipe = slapos.recipe.cmmi
-
-  [bzip2:cygwin]
-  patches = cygwin-bzip2-1.0.6.src.patch
-
-All the options in the [part:platform] have high priority level.
-
-The recipe first searches the exact match, if no found. Ignore arch
-and search again, if still found nothing. Use no platform part.
-
 Additionally, the recipe honors the ``download-cache`` option set
 in the ``[buildout]`` section and stores the downloaded files under
 it. If the value is not set a directory called ``downloads`` will be
@@ -632,46 +609,6 @@ shell command in the corresponding stage.
     package: Executing post-install
     Finished.
 
-Building in multi-platforms
-===========================
-
-The recipe can specify build options for each platform. For example,
-
-    >>> write('buildout.cfg',
-    ... """
-    ... [buildout]
-    ... newest = false
-    ... parts = package
-    ...
-    ... [package]
-    ... recipe = slapos.recipe.cmmi
-    ... url = file://%s
-    ... pre-configure = echo "Configure in common platform"
-    ... post-install = echo "Finished."
-    ...
-    ... [package:cygwin]
-    ... pre-configure = echo "Configure in the CYGWIN platform"
-    ... pre-install = echo "Installing in the CYGWIN"
-    ... post-install = echo -n "CYGWIN " && ${package:post-install}
-    ... """ % package_path)
-
-In the linux, the recipe gets the options from part 'package', there
-are only ``pre-configure`` and ``post-install``. the output will be
-
-    #>>> print(system(buildout))
-    Uninstalling package.
-    Installing package.
-    package: Executing pre-configure
-    Configure part: Configure in common platform
-    configure --prefix=/sample_buildout/parts/package
-    building package
-    installing package
-    package: Executing post-install
-    Finished.
-
-In the cygwin, the recipe merges the options in the parts 'package'
-and 'package:cygwin'.
-
 Union prefix
 ============
 

slapos/recipe/cmmi/__init__.py

@@ -8,7 +8,6 @@ import stat
 import subprocess
 import sys
 from hashlib import md5
-from platform import machine as platform_machine
 import pkg_resources
 import zc.buildout
 from zc.buildout import UserError
@@ -40,12 +39,6 @@ class Recipe(object):
         self.buildout = buildout
         self.name = name
         self.logger = logging.getLogger(self.name)
-        # Merge options if there is a matched platform section
-        platform_options = buildout.get(
-            "%s:%s:%s" % (name, sys.platform, self.get_machine()),
-            buildout.get("%s:%s" % (name, sys.platform)))
-        if platform_options is not None:
-            options.update(platform_options)
 
         environment_section = options.get('environment-section')
         self.environ = (
@@ -145,37 +138,6 @@ class Recipe(object):
         sig = zc.buildout.buildout._dists_sig(pkg_resources.working_set.resolve([req]))
         return ' '.join(sig)
 
-    def get_platform(self):
-        # Get value of sys.platform
-        for platform in ['linux', 'cygwin', 'beos', 'darwin', 'atheos', 'osf1',
-            'netbsd', 'openbsd',  'freebsd', 'unixware', 'sunos']:
-            if sys.platform.startswith(platform):
-                return platform
-        return sys.platform
-
-    def get_machine(self):
-        arch = platform_machine()
-        # i?86-*-* : x86
-        if arch in ('i386', 'i586', 'i686'):
-            return 'x86'
-        # x86_64-*-* : amd64
-        elif arch == 'x86_64':
-            return 'amd64'
-        # ia64-*-* : ia64
-        # and others
-        return arch
-
-    def get_platform_options(self):
-        platform_part = self.get_platform() + '-' + self.name
-        part_list = [part for part in self.buildout if part.endswith(platform_part)]
-        if part_list[:1]:
-            arch_prefix = self.get_machine() + '-'
-            for part in part_list:
-                if part.startswith(arch_prefix):
-                    return self.buildout[part]
-            else:
-                return self.buildout.get(platform_part)
-
     def download_file(self, url):
         download = zc.buildout.download.Download(
           self.buildout['buildout'], hash_name=True)