GOCBC-1494: Remove query index management error parsing

Motivation
----------
We have improved query error parsing in gocbcore and it now
handles cases like index already exists etc...

Changes
-------
Remove query index management error parsing.

Change-Id: I53f1ae86648c48f514e0d81909afe7c977d06742
Reviewed-on: https://review.couchbase.org/c/gocb/+/202504
Reviewed-by: Dimitris Christodoulou <dimitris.christodoulou@couchbase.com>
Tested-by: Charles Dixon <chvckd@gmail.com>

go.mod

@@ -1,7 +1,7 @@
 module github.com/couchbase/gocb/v2
 
 require (
-	github.com/couchbase/gocbcore/v10 v10.3.0
+	github.com/couchbase/gocbcore/v10 v10.3.1-0.20231212155116-d936c9049d5c
 	github.com/couchbase/gocbcoreps v0.1.0
 	github.com/couchbase/goprotostellar v1.0.0
 	github.com/couchbaselabs/gocaves/client v0.0.0-20230404095311-05e3ba4f0259

go.sum

@@ -4,8 +4,8 @@ github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZx
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-github.com/couchbase/gocbcore/v10 v10.3.0 h1:cu5KWP5Yq9cANw0UitpKWmb8mv9NDhC0ApIf9rMrVq8=
-github.com/couchbase/gocbcore/v10 v10.3.0/go.mod h1:lYQIIk+tzoMcwtwU5GzPbDdqEkwkH3isI2rkSpfL0oM=
+github.com/couchbase/gocbcore/v10 v10.3.1-0.20231212155116-d936c9049d5c h1:NWhbDPAOIX2Wh6Fd56NH1x//dHaAI7Ko0N7SGzR1VwA=
+github.com/couchbase/gocbcore/v10 v10.3.1-0.20231212155116-d936c9049d5c/go.mod h1:lYQIIk+tzoMcwtwU5GzPbDdqEkwkH3isI2rkSpfL0oM=
 github.com/couchbase/gocbcoreps v0.1.0 h1:9+Qq+H/YXYn+H6f5A5MndUv40qdCwPwoJjinHolxq2g=
 github.com/couchbase/gocbcoreps v0.1.0/go.mod h1:LjH33s/LNVBAwVU1Ka/YU3cLkuAyFC2dzGGiValJ5oY=
 github.com/couchbase/goprotostellar v1.0.0 h1:umfH4hOxrUS/0QY1AkdoVcpp9rg7Jl+UNWzNJ3KxIHc=

queryindexprovider_core.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"regexp"
 	"strconv"
 	"strings"
 	"time"
@@ -416,48 +415,6 @@ func (qpc *queryProviderCore) WatchIndexes(c *Collection, bucketName string, wat
 	return nil
 }
 
-func (qpc *queryProviderCore) tryParseErrorMessage(err error) error {
-	var qErr *QueryError
-	if !errors.As(err, &qErr) {
-		return err
-	}
-
-	if len(qErr.Errors) == 0 {
-		return err
-	}
-
-	firstErr := qErr.Errors[0]
-	var innerErr error
-	if firstErr.Code == 12016 {
-		innerErr = ErrIndexNotFound
-	} else if firstErr.Code == 4300 {
-		innerErr = ErrIndexExists
-	} else {
-		// Older server versions don't return meaningful error codes when it comes to index management
-		// so we need to go spelunking.
-		msg := strings.ToLower(firstErr.Message)
-		if match, err := regexp.MatchString(".*?ndex .*? not found.*", msg); err == nil && match {
-			innerErr = ErrIndexNotFound
-		} else if match, err := regexp.MatchString(".*?ndex .*? already exists.*", msg); err == nil && match {
-			innerErr = ErrIndexExists
-		}
-	}
-
-	if innerErr == nil {
-		return err
-	}
-
-	return QueryError{
-		InnerError:      innerErr,
-		Statement:       qErr.Statement,
-		ClientContextID: qErr.ClientContextID,
-		Errors:          qErr.Errors,
-		Endpoint:        qErr.Endpoint,
-		RetryReasons:    qErr.RetryReasons,
-		RetryAttempts:   qErr.RetryAttempts,
-	}
-}
-
 func (qpc *queryProviderCore) doQuery(c *Collection, q string, opts *QueryOptions) ([][]byte, error) {
 	if opts.Timeout == 0 {
 		opts.Timeout = qpc.timeouts.ManagementTimeout
@@ -471,7 +428,7 @@ func (qpc *queryProviderCore) doQuery(c *Collection, q string, opts *QueryOption
 
 	result, err := qpc.Query(q, scope, opts)
 	if err != nil {
-		return nil, qpc.tryParseErrorMessage(err)
+		return nil, err
 	}
 
 	var rows [][]byte
@@ -486,7 +443,7 @@ func (qpc *queryProviderCore) doQuery(c *Collection, q string, opts *QueryOption
 	}
 	err = result.Err()
 	if err != nil {
-		return nil, qpc.tryParseErrorMessage(err)
+		return nil, err
 	}
 
 	return rows, nil