TUN-2243: Revert "STOR-519: Add db-connect, a SQL over HTTPS server"

This reverts commit 5da2109811.

vendor/github.com/kshvakov/clickhouse/word_matcher.go

@@ -1,31 +0,0 @@
-package clickhouse
-
-import (
-	"strings"
-	"unicode"
-)
-
-// wordMatcher is a simple automata to match a single word (case insensitive)
-type wordMatcher struct {
-	word     []rune
-	position uint8
-}
-
-// newMatcher returns matcher for word needle
-func newMatcher(needle string) *wordMatcher {
-	return &wordMatcher{word: []rune(strings.ToUpper(needle)),
-		position: 0}
-}
-
-func (m *wordMatcher) matchRune(r rune) bool {
-	if m.word[m.position] == unicode.ToUpper(r) {
-		if m.position == uint8(len(m.word)-1) {
-			m.position = 0
-			return true
-		}
-		m.position++
-	} else {
-		m.position = 0
-	}
-	return false
-}