#2119 Dedupe the dff methods set

[kylekatarnls]

FIx #2119

[codecov-commenter]

Codecov Report

Merging #2155 into 3.x will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##                3.x     #2155      +/-   ##
=============================================
+ Coverage     99.95%   100.00%   +0.04%     
- Complexity     1956      2009      +53     
=============================================
  Files           882       885       +3     
  Lines          8525      8890     +365     
=============================================
+ Hits           8521      8890     +369     
+ Misses            4         0       -4     

Impacted Files	Coverage Δ	Complexity Δ
src/Carbon/Carbon.php	100.00% <ø> (ø)	1.00 <0.00> (ø)
src/Carbon/Factory.php	100.00% <ø> (ø)	13.00 <0.00> (ø)
src/Carbon/Lang/bm.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
src/Carbon/Lang/da.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
src/Carbon/Lang/de.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
src/Carbon/Lang/eo.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
src/Carbon/Lang/et.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
src/Carbon/Lang/eu.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
src/Carbon/Lang/fa.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
src/Carbon/Lang/fo.php	100.00% <ø> (ø)	0.00 <0.00> (ø)
... and 136 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8d1d67f...77dc26f. Read the comment docs.