refactor: remove unused support for Azure blob stores

Signed-off-by: Jakob Borg <jakob@kastelo.net>

go.mod

@@ -4,7 +4,6 @@ go 1.24.0
 
 require (
 	github.com/AudriusButkevicius/recli v0.0.7
-	github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.2
 	github.com/alecthomas/kong v1.12.1
 	github.com/aws/aws-sdk-go v1.55.8
 	github.com/calmh/incontainer v1.0.0
@@ -54,8 +53,6 @@ require (
 )
 
 require (
-	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.18.1 // indirect
-	github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.1 // indirect
 	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
@@ -90,6 +87,7 @@ require (
 	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/riywo/loginshell v0.0.0-20200815045211-7d26008be1ab // indirect
+	github.com/rogpeppe/go-internal v1.12.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/stretchr/testify v1.10.0 // indirect