Use lfs file for TextField snapshots. (#8232)

diff --git a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingViewAndTrailingView_11_2@2x.png b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingViewAndTrailingView_11_2@2x.png
index 515333c..39a3eb7 100644
--- a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingViewAndTrailingView_11_2@2x.png
+++ b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingViewAndTrailingView_11_2@2x.png
Binary files differ
diff --git a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingView_11_2@2x.png b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingView_11_2@2x.png
index e0a23c1..05fa032 100644
--- a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingView_11_2@2x.png
+++ b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithLeadingView_11_2@2x.png
Binary files differ
diff --git a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithText_11_2@2x.png b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithText_11_2@2x.png
index 7ff0946..560bdef 100644
--- a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithText_11_2@2x.png
+++ b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithText_11_2@2x.png
Binary files differ
diff --git a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithTrailingView_11_2@2x.png b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithTrailingView_11_2@2x.png
index d9a84da..efc7852 100644
--- a/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithTrailingView_11_2@2x.png
+++ b/snapshot_test_goldens/goldens_64/MDCBaseTextFieldTestsSnapshotTests/testTextFieldWithTrailingView_11_2@2x.png
Binary files differ