Delete 't0' table from schema.sql

Removed the 't0' table definition from the schema.

Author: adela-bytebase

schema/schema.sql

@@ -68,12 +68,6 @@ CREATE INDEX "idx_salary_amount" ON ONLY "public"."salary" (amount);
 
 CREATE TRIGGER salary_log_trigger AFTER DELETE OR UPDATE ON public.salary FOR EACH ROW EXECUTE FUNCTION public.log_dml_operations();
 
-CREATE TABLE "public"."t0" (
-    "id" serial,
-    "username" text NOT NULL,
-    CONSTRAINT "t0_pkey" PRIMARY KEY (id)
-);
-
 CREATE TABLE "public"."title" (
     "emp_no" integer NOT NULL,
     "title" text NOT NULL,