1 files changed, 0 insertions, 50 deletions
diff --git a/src/mongo/rpc/metadata/impersonated_user_metadata.cpp b/src/mongo/rpc/metadata/impersonated_user_metadata.cpp
index 3ee1a8c4320..64b78931f39 100644
--- a/src/mongo/rpc/metadata/impersonated_user_metadata.cpp
+++ b/src/mongo/rpc/metadata/impersonated_user_metadata.cpp
@@ -95,55 +95,5 @@ void writeAuthDataToImpersonatedUserMetadata(OperationContext* opCtx, BSONObjBui
     metadata.serialize(&section);
 }
 
-std::size_t estimateImpersonatedUserMetadataSize(OperationContext* opCtx) {
-    if (!opCtx) {
-        return 0;
-    }
-
-    // Otherwise construct a metadata section from the list of authenticated users/roles
-    auto authSession = AuthorizationSession::get(opCtx->getClient());
-    auto userNames = authSession->getImpersonatedUserNames();
-    auto roleNames = authSession->getImpersonatedRoleNames();
-    if (!userNames.more() && !roleNames.more()) {
-        userNames = authSession->getAuthenticatedUserNames();
-        roleNames = authSession->getAuthenticatedRoleNames();
-    }
-
-    // If there are no users/roles being impersonated just exit
-    if (!userNames.more() && !roleNames.more()) {
-        return 0;
-    }
-
-    std::size_t ret = 4 +                                   // BSONObj size
-        1 + kImpersonationMetadataSectionName.size() + 1 +  // "$audit" sub-object key
-        4;                                                  // $audit object length
-
-    // BSONArrayType + "impersonatedUsers" + NULL + BSONArray Length
-    ret += 1 + ImpersonatedUserMetadata::kUsersFieldName.size() + 1 + 4;
-    for (std::size_t i = 0; userNames.more(); userNames.next(), ++i) {
-        // BSONType::Object + strlen(indexId) + NULL byte
-        // to_string(i).size() will be log10(i) plus some rounding and fuzzing.
-        // Increment prior to taking the log so that we never take log10(0) which is NAN.
-        // This estimates one extra byte every time we reach (i % 10) == 9.
-        ret += 1 + static_cast<std::size_t>(1.1 + log10(i + 1)) + 1;
-        ret += userNames.get().getBSONObjSize();
-    }
-    // EOD terminator for impersonatedUsers
-    ++ret;
-
-    // BSONArrayType + "impersonatedRoles" + NULL + BSONArray Length
-    ret += 1 + ImpersonatedUserMetadata::kRolesFieldName.size() + 1 + 4;
-    for (std::size_t i = 0; roleNames.more(); roleNames.next(), ++i) {
-        // Same calculation as for UserNames above.
-        ret += 1 + static_cast<std::size_t>(1.1 + log10(i + 1)) + 1;
-        ret += roleNames.get().getBSONObjSize();
-    }
-
-    // EOD terminators for: impersonatedRoles, $audit, and metadata
-    ret += 1 + 1 + 1;
-
-    return ret;
-}
-
 }  // namespace rpc
 }  // namespace mongo