move columnar test files

src/backend/columnar/expected/am_create.out

@@ -1,20 +0,0 @@
---
--- Test the CREATE statements related to cstore.
---
--- Create uncompressed table
-CREATE TABLE contestant (handle TEXT, birthdate DATE, rating INT,
-	percentile FLOAT, country CHAR(3), achievements TEXT[])
-	USING cstore_tableam;
--- Create compressed table with automatically determined file path
--- COMPRESSED
-CREATE TABLE contestant_compressed (handle TEXT, birthdate DATE, rating INT,
-	percentile FLOAT, country CHAR(3), achievements TEXT[])
-	USING cstore_tableam;
--- Test that querying an empty table works
-ANALYZE contestant;
-SELECT count(*) FROM contestant;
- count 
--------
-     0
-(1 row)
-