diff --git a/util/coding.cc b/util/coding.cc
index 21e3186..da633c2 100644
--- a/util/coding.cc
+++ b/util/coding.cc
@@ -135,7 +135,7 @@ bool GetVarint32(Slice* input, uint32_t* value) {
   if (q == NULL) {
     return false;
   } else {
-    *input = Slice(q, limit - q);
+    input->remove_prefix(q - p);
     return true;
   }
 }
@@ -164,21 +164,11 @@ bool GetVarint64(Slice* input, uint64_t* value) {
   if (q == NULL) {
     return false;
   } else {
-    *input = Slice(q, limit - q);
+    input->remove_prefix(q - p);
     return true;
   }
 }
 
-const char* GetLengthPrefixedSlice(const char* p, const char* limit,
-                                   Slice* result) {
-  uint32_t len;
-  p = GetVarint32Ptr(p, limit, &len);
-  if (p == NULL) return NULL;
-  if (p + len > limit) return NULL;
-  *result = Slice(p, len);
-  return p + len;
-}
-
 bool GetLengthPrefixedSlice(Slice* input, Slice* result) {
   uint32_t len;
   if (GetVarint32(input, &len) &&
diff --git a/util/coding_test.cc b/util/coding_test.cc
index 521541e..ef182c1 100644
--- a/util/coding_test.cc
+++ b/util/coding_test.cc
@@ -92,7 +92,7 @@ TEST(Coding, Varint32) {
     ASSERT_EQ(expected, actual);
     ASSERT_EQ(VarintLength(actual), p - start);
   }
-  ASSERT_EQ(p, s.data() + s.size());
+  ASSERT_EQ(p, limit);
 }
 
 TEST(Coding, Varint64) {