Remove permissive cors headers

[ratulm]

Not needed anymore.

[batfish-bot]

This change is 

[dhalperi]

I do not believe this is the right fix -- remove the filter.

[dhalperi]

Reviewed 5 of 5 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @arifogel)

[codecov]

Codecov Report

Merging #6172 into master will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #6172      +/-   ##
============================================
- Coverage     72.83%   72.81%   -0.02%     
+ Complexity    34770    34755      -15     
============================================
  Files          2820     2819       -1     
  Lines        141791   141776      -15     
  Branches      17009    17009              
============================================
- Hits         103270   103236      -34     
- Misses        30354    30364      +10     
- Partials       8167     8176       +9     

Impacted Files	Coverage Δ	Complexity Δ
...or/src/main/java/org/batfish/coordinator/Main.java	57.84% <100.00%> (-0.62%)	29.00 <2.00> (ø)
...g/batfish/datamodel/flow/IncomingSessionScope.java	84.61% <0.00%> (-15.39%)	7.00% <0.00%> (-1.00%)
...rg/batfish/identifiers/StorageBasedIdResolver.java	88.88% <0.00%> (-4.45%)	27.00% <0.00%> (ø%)
.../org/batfish/dataplane/rib/RouteAdvertisement.java	84.78% <0.00%> (-4.35%)	16.00% <0.00%> (-1.00%)
...c/main/java/org/batfish/dataplane/rib/RibTree.java	89.58% <0.00%> (-4.17%)	27.00% <0.00%> (-1.00%)
...ain/java/org/batfish/symbolic/IngressLocation.java	65.78% <0.00%> (-2.64%)	15.00% <0.00%> (-1.00%)
...org/batfish/datamodel/flow/BidirectionalTrace.java	81.81% <0.00%> (-2.28%)	14.00% <0.00%> (-1.00%)
...col/src/main/java/org/batfish/role/InferRoles.java	89.54% <0.00%> (-1.37%)	50.00% <0.00%> (-1.00%)
...src/main/java/org/batfish/coordinator/PoolMgr.java	59.25% <0.00%> (-1.24%)	15.00% <0.00%> (-1.00%)
...a/org/batfish/representation/aws/LoadBalancer.java	82.18% <0.00%> (-0.32%)	70.00% <0.00%> (-1.00%)
... and 2 more

[dhalperi]

Reviewed 1 of 1 files at r3.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @arifogel)