Remove password_reset_form

lms/templates/password_reset_form.html

-<h1>Password reset</h1>
-
-<p>Forgotten your password? Enter your e-mail address below, and we'll e-mail instructions for setting a new one.</p>
-
-<form id="pwd_reset_form">
-  <div id="pwd_error"></div>
-  <label for="id_email">E-mail address:</label>
-  <input id="id_email" type="email" name="email" maxlength="75" />
-  <input type="submit" id="pwd_reset_button" value="Reset my password" />
-</form>