Revert "FALCON-87 Hive table integration with feed entity. Contributed by Venkatesh Seetharam"

This reverts commit 1e6ace4327910250f60e6d1e41ce5b1726bf4a4f.
Merge commit 'c82b663fcb74fe00b6ff7572e8c2735d9f878b7c' into 85

Conflicts:
	CHANGES.txt
	common/src/main/java/org/apache/falcon/catalog/AbstractCatalogService.java
	common/src/main/java/org/apache/falcon/catalog/HiveCatalogService.java
	common/src/main/java/org/apache/falcon/entity/CatalogStorage.java
	common/src/main/java/org/apache/falcon/entity/FeedHelper.java
	common/src/main/java/org/apache/falcon/entity/FileSystemStorage.java
	common/src/main/java/org/apache/falcon/entity/parser/FeedEntityParser.java
	common/src/main/java/org/apache/falcon/group/FeedGroup.java
	common/src/main/java/org/apache/falcon/group/FeedGroupMap.java
	common/src/test/java/org/apache/falcon/entity/CatalogStorageTest.java
	common/src/test/java/org/apache/falcon/entity/FileSystemStorageTest.java
	common/src/test/java/org/apache/falcon/entity/parser/FeedEntityParserTest.java
	common/src/test/resources/config/feed/hive-table-feed.xml
	process/src/main/java/org/apache/falcon/workflow/OozieProcessWorkflowBuilder.java
	process/src/test/java/org/apache/falcon/converter/OozieProcessMapperTest.java