Remove the whole row when data duplicate

[cherrychan]

I have a huge of data

COLUMN C is Time
COLUMN D is NUMBER

I want to delete the whole ROW when duplicate C and D, for example

C D
9:00 1
9:00 1
9:01 2

then run the macro become

C D
9:00 1
9:01 2

Thank for any excel expert to help. Thank you very much.