The ornamental design for a tool for removingbrackets of braces or retainers, as shown and described.
FIG. 1 is a top perspective view of a tool for removing brackets of braces or retainers showing my design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof; and,
FIG. 4 is a front elevational view thereof (the rear elevational view, right side view and left side view are mirror images of the front view.)
The broken lines showing portions of a tool for removing brackets of braces or retainers are included for the purpose of illustrating environmental structure and form no part of the claimed design.