Duplicate warnings were removed

mysql-test/suite/storage_engine/col_opt_not_null.result

@@ -177,7 +177,6 @@ HEX(v0)	HEX(v1)	HEX(v64)	LENGTH(HEX(v65000))
 ALTER TABLE t1 ADD COLUMN v65536 VARBINARY(65536) <CUSTOM_COL_OPTIONS> NOT NULL;
 Warnings:
 Note	1246	Converting column 'v65536' from VARBINARY to BLOB
-Note	1246	Converting column 'v65536' from VARBINARY to BLOB
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 v0	varbinary(0)	#	#	#	
@@ -690,7 +689,6 @@ v0	v1	v64	LENGTH(v65000)
 ALTER TABLE t1 ADD COLUMN v65536 VARCHAR(65536) <CUSTOM_COL_OPTIONS> NOT NULL;
 Warnings:
 Note	1246	Converting column 'v65536' from VARCHAR to TEXT
-Note	1246	Converting column 'v65536' from VARCHAR to TEXT
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 v0	varchar(0)	#	#	#	
@@ -977,7 +975,6 @@ a	b	c
 ALTER TABLE t1 ADD COLUMN e ENUM('a','A') <CUSTOM_COL_OPTIONS> NOT NULL;
 Warnings:
 Note	1291	Column 'e' has duplicated value 'a' in ENUM
-Note	1291	Column 'e' has duplicated value 'a' in ENUM
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 a	enum('')	#	#	#	
@@ -1936,7 +1933,6 @@ a	b	c
 ALTER TABLE t1 ADD COLUMN e SET('a','A') <CUSTOM_COL_OPTIONS> NOT NULL;
 Warnings:
 Note	1291	Column 'e' has duplicated value 'a' in SET
-Note	1291	Column 'e' has duplicated value 'a' in SET
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 a	set('')	#	#	#	

mysql-test/suite/storage_engine/col_opt_null.result

@@ -173,7 +173,6 @@ HEX(v0)	HEX(v1)	HEX(v64)	LENGTH(HEX(v65000))
 ALTER TABLE t1 ADD COLUMN v65536 VARBINARY(65536) <CUSTOM_COL_OPTIONS> NULL;
 Warnings:
 Note	1246	Converting column 'v65536' from VARBINARY to BLOB
-Note	1246	Converting column 'v65536' from VARBINARY to BLOB
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 v0	varbinary(0)	#	#	#	
@@ -678,7 +677,6 @@ v0	v1	v64	LENGTH(v65000)
 ALTER TABLE t1 ADD COLUMN v65536 VARCHAR(65536) <CUSTOM_COL_OPTIONS> NULL;
 Warnings:
 Note	1246	Converting column 'v65536' from VARCHAR to TEXT
-Note	1246	Converting column 'v65536' from VARCHAR to TEXT
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 v0	varchar(0)	#	#	#	
@@ -945,7 +943,6 @@ a	b	c
 ALTER TABLE t1 ADD COLUMN e ENUM('a','A') <CUSTOM_COL_OPTIONS> NULL;
 Warnings:
 Note	1291	Column 'e' has duplicated value 'a' in ENUM
-Note	1291	Column 'e' has duplicated value 'a' in ENUM
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 a	enum('')	#	#	#	
@@ -1862,7 +1859,6 @@ a	b	c
 ALTER TABLE t1 ADD COLUMN e SET('a','A') <CUSTOM_COL_OPTIONS> NULL;
 Warnings:
 Note	1291	Column 'e' has duplicated value 'a' in SET
-Note	1291	Column 'e' has duplicated value 'a' in SET
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 a	set('')	#	#	#	

mysql-test/suite/storage_engine/type_enum.result

@@ -26,7 +26,6 @@ a	b	c
 ALTER TABLE t1 ADD COLUMN e ENUM('a','A') <CUSTOM_COL_OPTIONS>;
 Warnings:
 Note	1291	Column 'e' has duplicated value 'a' in ENUM
-Note	1291	Column 'e' has duplicated value 'a' in ENUM
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 a	enum('')	#	#	#	

mysql-test/suite/storage_engine/type_set.result

@@ -32,7 +32,6 @@ a	b	c
 ALTER TABLE t1 ADD COLUMN e SET('a','A') <CUSTOM_COL_OPTIONS>;
 Warnings:
 Note	1291	Column 'e' has duplicated value 'a' in SET
-Note	1291	Column 'e' has duplicated value 'a' in SET
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 a	set('')	#	#	#	

mysql-test/suite/storage_engine/type_varbinary.result

@@ -81,7 +81,6 @@ HEX(v0)	HEX(v1)	HEX(v64)	LENGTH(HEX(v65000))
 ALTER TABLE t1 ADD COLUMN v65536 VARBINARY(65536) <CUSTOM_COL_OPTIONS>;
 Warnings:
 Note	1246	Converting column 'v65536' from VARBINARY to BLOB
-Note	1246	Converting column 'v65536' from VARBINARY to BLOB
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 v0	varbinary(0)	#	#	#	

mysql-test/suite/storage_engine/type_varchar.result

@@ -116,7 +116,6 @@ v0	v1	v64	LENGTH(v65000)
 ALTER TABLE t1 ADD COLUMN v65536 VARCHAR(65536) <CUSTOM_COL_OPTIONS>;
 Warnings:
 Note	1246	Converting column 'v65536' from VARCHAR to TEXT
-Note	1246	Converting column 'v65536' from VARCHAR to TEXT
 SHOW COLUMNS IN t1;
 Field	Type	Null	Key	Default	Extra
 v0	varchar(0)	#	#	#