Remove use of dialect.LikeStr (#104460)

* Fix TestIntegrationUpdatingProvisionionedDashboards* tests when running on Spanner by fixing case-insensitive search for dashboard title.

* Fix use of case-insensitive LIKE when running on Spanner.

* Fix use of LikeStr in anonstore.

* Fix use of LikeStr in ngalert/store and org/orgimpl.

* Fix use of LikeStr in queryhistory search.

* Fix use of LikeStr in serviceaccounts.

* Fix use of LikeStr in serviceaccounts.

* Fix use of LikeStr in services/team.

* Remove LikeStr method.

pkg/services/sqlstore/migrator/dialect.go

@@ -27,8 +27,6 @@ type Dialect interface {
 	ShowCreateNull() bool
 	SQLType(col *Column) string
 	SupportEngine() bool
-	// Deprecated. This doesn't work correctly for all databases.
-	LikeStr() string
 	// LikeOperator returns SQL snippet and query parameter for case-insensitive LIKE operation, with optional wildcards (%) before/after the pattern.
 	LikeOperator(column string, wildcardBefore bool, pattern string, wildcardAfter bool) (string, string)
 	Default(col *Column) string
@@ -152,10 +150,6 @@ func (b *BaseDialect) AndStr() string {
 	return "AND"
 }
 
-func (b *BaseDialect) LikeStr() string {
-	return "LIKE"
-}
-
 func (b *BaseDialect) LikeOperator(column string, wildcardBefore bool, pattern string, wildcardAfter bool) (string, string) {
 	param := pattern
 	if wildcardBefore {

pkg/services/sqlstore/migrator/postgres_dialect.go

@@ -31,10 +31,6 @@ func (db *PostgresDialect) Quote(name string) string {
 	return "\"" + name + "\""
 }
 
-func (db *PostgresDialect) LikeStr() string {
-	return "ILIKE"
-}
-
 func (db *PostgresDialect) LikeOperator(column string, wildcardBefore bool, pattern string, wildcardAfter bool) (string, string) {
 	param := pattern
 	if wildcardBefore {