fix(template): remove excess codes from sql sample

Templates/csharp-sql/CsharpSql/Program.cs

@@ -18,6 +18,7 @@
 // return;
 // static IQueryable<object> Solution() {
 //     var db = new AppDbContext();
+
 //     var result = from person in db.People
 //         join address in db.Addresses
 //             on person.PersonId equals address.PersonId into addrGroup
@@ -28,5 +29,6 @@
 //             City = address.City,
 //             State = address.State
 //         };
+
 //     return result;
 // }

Templates/csharp-sql/solution.sql

@@ -17,36 +17,12 @@ use LeetCode;
 go
 
 -- create tables
-create table Person
-(
-    personId  int primary key,
-    lastName  varchar(255),
-    firstName varchar(255)
-);
-
-create table Address
-(
-    addressId int primary key,
-    personId  int,
-    city      varchar(255),
-    state     varchar(255)
-);
+
 
 -- insert sample data
-insert into Person (personId, lastName, firstName)
-values (1, 'Smith', 'John'),
-       (2, 'Johnson', 'Jane'),
-       (3, 'Williams', 'Alice');
-
-insert into Address (addressId, personId, city, state)
-values (1, 1, 'New York', 'NY'),
-       (2, 2, 'Los Angeles', 'CA');
-go
+
 
 -- Solution
-select p.firstName, p.lastName, a.city, a.state
-from Person p
-         left join Address a on p.personId = a.personId;
 
 
 -- switch to master before drop