kvclient: remove MakeEvictionToken from the interface

This method was only used internally and is simple to create manually
now. It was confusing to have it on the public interface as its not the
right way to create a token.

Epic: none

Release note: None

pkg/kv/kvclient/rangecache/range_cache.go

@@ -278,18 +278,6 @@ type EvictionToken struct {
 	entry *cacheEntry
 }
 
-func (rc *RangeCache) makeEvictionToken(entry *cacheEntry) EvictionToken {
-	return EvictionToken{
-		rdc:   rc,
-		entry: entry,
-	}
-}
-
-// MakeEvictionToken is the exported ctor. For tests only.
-func (rc *RangeCache) MakeEvictionToken(entry *cacheEntry) EvictionToken {
-	return rc.makeEvictionToken(entry)
-}
-
 func (et EvictionToken) String() string {
 	if !et.Valid() {
 		return "<empty>"
@@ -622,7 +610,9 @@ func (rc *RangeCache) Lookup(ctx context.Context, key roachpb.RKey) (roachpb.Ran
 
 // GetCachedOverlapping returns all the cached entries which overlap a given
 // span [Key, EndKey). The results are sorted ascendingly.
-func (rc *RangeCache) GetCachedOverlapping(ctx context.Context, span roachpb.RSpan) []roachpb.RangeInfo {
+func (rc *RangeCache) GetCachedOverlapping(
+	ctx context.Context, span roachpb.RSpan,
+) []roachpb.RangeInfo {
 	rc.rangeCache.RLock()
 	defer rc.rangeCache.RUnlock()
 	rawEntries := rc.getCachedOverlappingRLocked(ctx, span)
@@ -711,7 +701,7 @@ func (rc *RangeCache) tryLookup(
 	rc.rangeCache.RLock()
 	if entry, _ := rc.getCachedRLocked(ctx, key, useReverseScan); entry != nil {
 		rc.rangeCache.RUnlock()
-		returnToken := rc.makeEvictionToken(entry)
+		returnToken := EvictionToken{rdc: rc, entry: entry}
 		return returnToken, nil
 	}
 
@@ -967,7 +957,7 @@ func tryLookupImpl(
 		}
 		entry = &newEntry
 	}
-	lookupRes = rc.makeEvictionToken(entry)
+	lookupRes = EvictionToken{rdc: rc, entry: entry}
 	return lookupRes, nil
 }