cleanup: move test w/ character_set_results=utf16 into separate file

Author: vuvova

mysql-test/main/vector_funcs.result

@@ -41,14 +41,6 @@ from t1;
 
 drop table t1;
 
-set collation_connection=utf16_general_ci;
-set character_set_results=utf16;
-select hex(vec_fromtext('[1,2,3]'));
-select vec_totext(x'0000803F0000004000004040FFFFFFFF0000807F000080FF');
-set character_set_results=default;
-select vec_totext(x'0000803F0000004000004040FFFFFFFF0000807F000080FF');
-
-set names utf8mb4;
 create table t1 as select vec_totext(x'55555555') x;
 show create table t1;
 select * from t1;

mysql-test/main/vector_funcs.test

@@ -0,0 +1,6 @@
+set collation_connection=utf16_general_ci;
+set character_set_results=utf16;
+select hex(vec_fromtext('[1,2,3]'));
+select vec_totext(x'0000803F0000004000004040FFFFFFFF0000807F000080FF');
+set character_set_results=default;
+select vec_totext(x'0000803F0000004000004040FFFFFFFF0000807F000080FF');