diff --git a/client/common.go b/client/common.go
index ac9feb0..0df1806 100644
--- a/client/common.go
+++ b/client/common.go
@@ -24,24 +24,6 @@ func (x statusRes) Status() apistatus.Status {
 	return x.st
 }
 
-// groups meta parameters shared between all Client operations.
-type prmCommonMeta struct {
-	// FrostFS request X-Headers
-	xHeaders []string
-}
-
-// WithXHeaders specifies list of extended headers (string key-value pairs)
-// to be attached to the request. Must have an even length.
-//
-// Slice must not be mutated until the operation completes.
-func (x *prmCommonMeta) WithXHeaders(hs ...string) {
-	if len(hs)%2 != 0 {
-		panic("slice of X-Headers with odd length")
-	}
-
-	x.xHeaders = hs
-}
-
 func writeXHeadersToMeta(xHeaders []string, h *v2session.RequestMetaHeader) {
 	if len(xHeaders) == 0 {
 		return