Revert "Adding SELECT benchmark."

This reverts commit de7dfc95.

util/sqlgen/benchmark_test.go

-package sqlgen
-
-import (
-	"testing"
-)
-
-func BenchmarkColumn(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Column{"a"}
-	}
-}
-
-func BenchmarkColumnNestedValue(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Column{Value: "a"}
-	}
-}
-
-func BenchmarkCompileColumn(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Column{Value: "a"}.Compile(defaultTemplate)
-	}
-}
-
-func BenchmarkValue(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Value{"a"}
-	}
-}
-
-func BenchmarkValueRaw(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Value{Raw{"a"}}
-	}
-}
-
-func BenchmarkColumnValue(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = ColumnValue{Column{"a"}, "=", Value{Raw{"7"}}}
-	}
-}
-
-func BenchmarkTable(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Table{"foo"}
-	}
-}
-
-func BenchmarkCompileTable(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Table{"foo"}.Compile(defaultTemplate)
-	}
-}
-
-func BenchmarkWhere(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		_ = Where{
-			ColumnValue{Column{"a"}, "=", Value{Raw{"7"}}},
-		}
-	}
-}
-
-func BenchmarkCompileSelect(b *testing.B) {
-	var stmt Statement
-
-	for i := 0; i < b.N; i++ {
-		stmt = Statement{
-			Type:  SqlSelectCount,
-			Table: Table{"table_name"},
-			Where: Where{
-				ColumnValue{Column{"a"}, "=", Value{Raw{"7"}}},
-			},
-		}
-		_ = stmt.Compile(defaultTemplate)
-	}
-}