Revert "Rubocop - auto corrections"

This reverts commit 39ea0d4882.

spec/models/garden_spec.rb

@@ -100,7 +100,7 @@ describe Garden do
 
     it 'cleans up zero quantities' do
       garden = FactoryBot.build(:garden, area: 0)
-      garden.area.should.zero?
+      garden.area.should == 0
     end
 
     it "doesn't allow non-numeric quantities" do

spec/models/harvest_spec.rb

@@ -36,7 +36,7 @@ describe Harvest do
 
     it 'cleans up zero quantities' do
       @harvest = FactoryBot.build(:harvest, quantity: 0)
-      @harvest.quantity.should.zero?
+      @harvest.quantity.should == 0
     end
 
     it "doesn't allow non-numeric quantities" do
@@ -90,7 +90,7 @@ describe Harvest do
 
     it 'cleans up zero quantities' do
       @harvest = FactoryBot.build(:harvest, weight_quantity: 0)
-      @harvest.weight_quantity.should.zero?
+      @harvest.weight_quantity.should == 0
     end
 
     it "doesn't allow non-numeric weight quantities" do