Fix problems reported by staticcheck

`staticcheck` is a golang code analysis tool. https://staticcheck.io/

This commit fixes a lot of problems found in our code. Common problems are:
- unnecessary use of fmt.Sprintf
- duplicated imports with different names
- unnecessary check that a key exists before a delete call

There are still a lot of reported problems in the test files but I have
not looked at those.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>

1 files changed, 0 insertions, 3 deletions

diff --git a/pkg/specgen/generate/config_linux.go b/pkg/specgen/generate/config_linux.go
index e0b039fb7..1290a8eb6 100644
--- a/pkg/specgen/generate/config_linux.go
+++ b/pkg/specgen/generate/config_linux.go
@@ -21,9 +21,6 @@ var (
 	errNotADevice = errors.New("not a device node")
 )
 
-func u32Ptr(i int64) *uint32     { u := uint32(i); return &u }
-func fmPtr(i int64) *os.FileMode { fm := os.FileMode(i); return &fm }
-
 func addPrivilegedDevices(g *generate.Generator) error {
 	hostDevices, err := getDevices("/dev")
 	if err != nil {