contrib/database/sql: remove broken execution trace tests (#2789)

The execution tracer tests for contrib/database/sql use a parser which
does not support Go 1.21 or newer traces. The tests should be ported to
use golang.org/x/exp/trace and moved to internal/exectracetest, but for
now they are effectively broken since we no longer run Go 1.20 in CI.
Remove them to fix CI on main, until we port them to the new parser.

go.mod

@@ -112,7 +112,6 @@ require (
 	gorm.io/driver/postgres v1.4.6
 	gorm.io/driver/sqlserver v1.4.2
 	gorm.io/gorm v1.25.3
-	honnef.co/go/gotraceui v0.4.0
 	k8s.io/apimachinery v0.23.17
 	k8s.io/client-go v0.23.17
 	modernc.org/sqlite v1.28.0

go.sum

@@ -3058,8 +3058,6 @@ gotest.tools/gotestsum v1.8.2/go.mod h1:6JHCiN6TEjA7Kaz23q1bH0e2Dc3YJjDUZ0DmctFZ
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
 gotest.tools/v3 v3.3.0/go.mod h1:Mcr9QNxkg0uMvy/YElmo4SpXgJKWgQvYrT7Kw5RzJ1A=
-honnef.co/go/gotraceui v0.4.0 h1:6CioQQRvVEWTQ9fXcGY3LXSuKL6cgavln5ZMKVbF5yE=
-honnef.co/go/gotraceui v0.4.0/go.mod h1:hcoo31yypIJuS1FXdFWjKu1PVJrdpIL9ShdQvMvm9qw=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=