chore: remove redundant words (#6430)

Signed-off-by: slicesequal <slicesequal@outlook.com>

Author: slicesequal

CONTRIBUTING.md

@@ -23,7 +23,7 @@ The core development team monitors the Algorand [discord community](https://disc
 
 ## Pull Requests
 
-All changes are are made via pull requests.
+All changes are made via pull requests.
 
 Small changes are easier to review and merge than large ones, so the more focused a PR the better. If a feature requires refactoring, the refactoring should be a separate PR. If refactoring uncovers a bug, the fix should be a separate PR. These are not strict rules, but generally speaking, they make things easier to review which speeds up the PR process.
 

cmd/util/datadir/datadir.go

@@ -24,7 +24,7 @@ import (
 // DataDirs contains the list of data directories
 var DataDirs []string
 
-// ResolveDataDir determines the data directory to to use.
+// ResolveDataDir determines the data directory to use.
 // If not specified on cmdline with '-d', look for default in environment.
 func ResolveDataDir() string {
 	var dir string