[chromedriver] Stop supporting chrome 26. Don't run tests against it.

chrome/test/chromedriver/element_commands.cc

Index: chrome/test/chromedriver/element_commands.cc
diff --git a/chrome/test/chromedriver/element_commands.cc b/chrome/test/chromedriver/element_commands.cc
index d1620a88a5dc1e7dcc6e992178c06445d2ca4577..b3e313cb3c25196f347bfca101dfba3cf714d1da 100644
--- a/chrome/test/chromedriver/element_commands.cc
+++ b/chrome/test/chromedriver/element_commands.cc
@@ -217,16 +217,6 @@ Status ExecuteSendKeysToElement(
   if (status.IsError())
     return status;
   if (is_input && is_file) {
-    // File upload is only supported for chrome 27+.
-    if (session->chrome->GetBuildNo() < 1420) {
-      return Status(
-          kUnknownError,
-          base::StringPrintf(
-              "file upload requires chrome 27+, build 1420+,"
-              "while current one is %s",
-              session->chrome->GetVersion().c_str()));
-    }
-
     // Compress array into a single string.
     base::FilePath::StringType paths_string;
     for (size_t i = 0; i < key_list->GetSize(); ++i) {