[verify_layer] Stop trying to verify JSON product configurations

Product configurations are now specified in .gni files, which has built
in syntax checking.

Test: CQ

BLD-240 #comment verify_layer

Change-Id: I2c0326805ddd812b14f62ad416d60e481868d9aa
diff --git a/packages/common.py b/packages/common.py
index 210ebb9..2701e81 100644
--- a/packages/common.py
+++ b/packages/common.py
@@ -17,12 +17,3 @@
     with open(os.path.join(FUCHSIA_ROOT, package), 'r') as package_file:
         data = json.load(package_file)
     return data['imports'] if 'imports' in data else []
-
-def get_product_imports(product):
-    with open(os.path.join(FUCHSIA_ROOT, product), 'r') as product_file:
-        data = json.load(product_file)
-    imports = []
-    imports.extend(data['monolith'] if 'monolith' in data else [])
-    imports.extend(data['preinstall'] if 'preinstall' in data else [])
-    imports.extend(data['available'] if 'available' in data else [])
-    return imports
\ No newline at end of file
diff --git a/packages/verify_layer.py b/packages/verify_layer.py
index 9267c68..cc75bad 100755
--- a/packages/verify_layer.py
+++ b/packages/verify_layer.py
@@ -4,7 +4,7 @@
 # found in the LICENSE file.
 
 import argparse
-from common import FUCHSIA_ROOT, get_package_imports, get_product_imports
+from common import FUCHSIA_ROOT, get_package_imports
 import json
 import os
 import subprocess
@@ -36,11 +36,6 @@
     'products',
 ]
 
-# README.md and .gni files are allowed in package directories, but aren't
-# JSON package definitions files.
-def is_package_file(file):
-    return file != 'README.md' and not file.endswith('.gni')
-
 
 def check_json(packages):
     '''Verifies that all files in the list are JSON files.'''
@@ -102,7 +97,7 @@
         for file in filenames:
             if is_root and (file in ROOT_CANONICAL_PACKAGES or file == layer):
                 continue
-            if file in CANONICAL_PACKAGES or not is_package_file(file):
+            if file in CANONICAL_PACKAGES or file == 'README.md':
                 continue
             package = os.path.join(dirpath, file)
             if not verify(package):
@@ -137,19 +132,6 @@
     return all_there
 
 
-def check_product_root(base, layer):
-    '''Verified that the default product is present.'''
-    missing = []
-    for product in REQUIRED_PRODUCTS:
-        path = os.path.join(base, product)
-        if not os.path.isfile(path):
-            missing.append(path)
-    if not missing:
-        return True
-    print('Missing products: %s' % missing)
-    return False
-
-
 def main():
     parser = argparse.ArgumentParser(
             description=('Checks that packages in a given layer are properly '
@@ -169,37 +151,22 @@
     if args.layer:
         layer = args.layer
         packages_base = os.path.join(layer, 'packages')
-        products_base = os.path.join(layer, 'products')
     else:
         layer = args.vendor_layer
         packages_base = os.path.join('vendor', layer, 'packages')
-        products_base = os.path.join('vendor', layer, 'products')
 
     # List all packages files.
     packages = []
     for dirpath, dirnames, filenames in os.walk(packages_base):
-        packages.extend([os.path.join(dirpath, f) for f in filenames
-                         if is_package_file(f)])
-
-    products = []
-    for dirpath, dirnames, filenames in os.walk(products_base):
-        products.extend([os.path.join(dirpath, f) for f in filenames
-                         if is_package_file(f)])
+        packages.extend([os.path.join(dirpath, f) for f in filenames if f != 'README.md'])
 
     if not check_json(packages):
         return False
 
-    if not check_json(products):
-        return False
-
     schema = os.path.join(SCRIPT_DIR, 'package_schema.json')
     if not check_schema(packages, args.json_validator, schema):
         return False
 
-    schema = os.path.join(SCRIPT_DIR, 'product_schema.json')
-    if not check_schema(products, args.json_validator, schema):
-        return False
-
     deps = dict([(p, get_package_imports(p)) for p in packages])
 
     if not check_deps_exist(deps):
@@ -214,13 +181,6 @@
     if not check_root(packages_base, layer):
         return False
 
-    deps = dict([(p, get_product_imports(p)) for p in products])
-    if not check_deps_exist(deps):
-        return False
-
-    if not check_product_root(products_base, layer):
-        return False
-
     return True