Merge pull request #45912 from nicksardo/gce-src-ip-dedupe

Automatic merge from submit-queue (batch tested with PRs 45884, 45879, 45912, 45444, 45874)

[GCE] Removed duplicate CIDR

**What this PR does / why we need it**:
Removes a duplicate CIDR in the list of LB source CIDRs.
https://cloud.google.com/compute/docs/load-balancing/network/ and https://cloud.google.com/compute/docs/load-balancing/http/ both list `35.191.0.0/16`.  Only one is needed.

**Release note**:

```release-note
NONE
```

pkg/cloudprovider/providers/gce/gce_loadbalancer.go

@@ -70,7 +70,7 @@ func newAddressMetricContext(request, region string) *metricContext {
 
 func init() {
 	var err error
-	lbSrcRngsFlag.ipn, err = netsets.ParseIPNets([]string{"130.211.0.0/22", "35.191.0.0/16", "209.85.152.0/22", "209.85.204.0/22", "35.191.0.0/16"}...)
+	lbSrcRngsFlag.ipn, err = netsets.ParseIPNets([]string{"130.211.0.0/22", "35.191.0.0/16", "209.85.152.0/22", "209.85.204.0/22"}...)
 	if err != nil {
 		panic("Incorrect default GCE L7 source ranges")
 	}