Revert "Add view and then edit capabilities"

This reverts commit d03ef4cfa84dabf7be178757832dbb11a598871b.

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/controller/AddTaskController.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/controller/TaskController.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/AbstractButtonPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/AbstractTaskPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/EditTaskPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/NewTaskPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/ViewTaskButtonPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/ViewTaskPanel.java
Fix null pointer error