diff --git a/.travis.yml b/.travis.yml
index de0920d..041e361 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,9 +12,7 @@ php:
 
 env:
  matrix:
-  - DB=pgsql MOODLE_BRANCH=MOODLE_31_STABLE
   - DB=pgsql MOODLE_BRANCH=master
-  - DB=mysqli MOODLE_BRANCH=MOODLE_31_STABLE
   - DB=mysqli MOODLE_BRANCH=master
 
 before_install:
diff --git a/export.php b/export.php
index ead107a..5dcd2ac 100644
--- a/export.php
+++ b/export.php
@@ -45,7 +45,6 @@ $PAGE->set_url($att->url_export());
 $PAGE->set_title($course->shortname. ": ".$att->name);
 $PAGE->set_heading($course->fullname);
 $PAGE->set_cacheable(true);
-$PAGE->set_button($OUTPUT->update_module_button($cm->id, 'attendance'));
 $PAGE->navbar->add(get_string('export', 'attendance'));
 
 $formparams = array('course' => $course, 'cm' => $cm, 'modcontext' => $context);
diff --git a/report.php b/report.php
index a785ba5..4a84f9f 100644
--- a/report.php
+++ b/report.php
@@ -53,7 +53,6 @@ $PAGE->set_pagelayout('report');
 $PAGE->set_title($course->shortname. ": ".$att->name.' - '.get_string('report', 'attendance'));
 $PAGE->set_heading($course->fullname);
 $PAGE->set_cacheable(true);
-$PAGE->set_button($OUTPUT->update_module_button($cm->id, 'attendance'));
 $PAGE->navbar->add(get_string('report', 'attendance'));
 
 $output = $PAGE->get_renderer('mod_attendance');
diff --git a/take.php b/take.php
index 2e0843f..72877de 100644
--- a/take.php
+++ b/take.php
@@ -64,7 +64,6 @@ $PAGE->set_url($att->url_take());
 $PAGE->set_title($course->shortname. ": ".$att->name);
 $PAGE->set_heading($course->fullname);
 $PAGE->set_cacheable(true);
-$PAGE->set_button($OUTPUT->update_module_button($cm->id, 'attendance'));
 $PAGE->navbar->add($att->name);
 
 $output = $PAGE->get_renderer('mod_attendance');
diff --git a/tempmerge.php b/tempmerge.php
index 9bf3f44..8815fca 100644
--- a/tempmerge.php
+++ b/tempmerge.php
@@ -45,7 +45,6 @@ require_login($course, true, $cm);
 $PAGE->set_title($course->shortname.": ".$att->name.' - '.get_string('tempusermerge', 'attendance'));
 $PAGE->set_heading($course->fullname);
 $PAGE->set_cacheable(true);
-$PAGE->set_button($OUTPUT->update_module_button($cm->id, 'attendance'));
 $PAGE->navbar->add(get_string('tempusermerge', 'attendance'));
 
 $formdata = (object)array(