Remove unnecessary HttpView.currentView() casts in JSPs

Original PR: LabKey/platform#6535

Author: labkey-adam

study/src/org/labkey/study/view/studydesign/manageAssaySchedule.jsp

@@ -38,7 +38,7 @@
     }
 %>
 <%
-    JspView<StudyDesignController.AssayScheduleForm> me = (JspView<StudyDesignController.AssayScheduleForm>) HttpView.currentView();
+    JspView<StudyDesignController.AssayScheduleForm> me = HttpView.currentView();
     StudyDesignController.AssayScheduleForm form = me.getModelBean();
 
     Container c = getContainer();

study/src/org/labkey/study/view/studydesign/manageStudyProducts.jsp

@@ -37,7 +37,7 @@
     }
 %>
 <%
-    JspView<ReturnUrlForm> me = (JspView<ReturnUrlForm>) HttpView.currentView();
+    JspView<ReturnUrlForm> me = HttpView.currentView();
     ReturnUrlForm bean = me.getModelBean();
     Container c = getContainer();
 

study/src/org/labkey/study/view/studydesign/manageTreatments.jsp

@@ -21,6 +21,7 @@
 <%@ page import="org.labkey.api.study.Study" %>
 <%@ page import="org.labkey.api.study.TimepointType" %>
 <%@ page import="org.labkey.api.study.Visit" %>
+<%@ page import="org.labkey.api.study.security.permissions.ManageStudyPermission" %>
 <%@ page import="org.labkey.api.view.ActionURL" %>
 <%@ page import="org.labkey.api.view.HttpView" %>
 <%@ page import="org.labkey.api.view.JspView" %>
@@ -29,7 +30,6 @@
 <%@ page import="org.labkey.study.controllers.StudyController" %>
 <%@ page import="org.labkey.study.controllers.StudyDesignController" %>
 <%@ page import="org.labkey.study.model.StudyManager" %>
-<%@ page import="org.labkey.api.study.security.permissions.ManageStudyPermission" %>
 <%@ page extends="org.labkey.api.jsp.JspBase" %>
 <%!
     @Override
@@ -40,7 +40,7 @@
     }
 %>
 <%
-    JspView<StudyDesignController.ManageTreatmentsBean> me = (JspView<StudyDesignController.ManageTreatmentsBean>) HttpView.currentView();
+    JspView<StudyDesignController.ManageTreatmentsBean> me = HttpView.currentView();
     StudyDesignController.ManageTreatmentsBean bean = me.getModelBean();
 
     Container c = getContainer();