renamed the field hostip to hostIp and removed duplicated methods

apache#9394 (comment)

Author: FelipeM525

engine/schema/src/main/java/com/cloud/storage/VolumeVO.java

@@ -100,7 +100,7 @@ public class VolumeVO implements Volume {
     private long dataCenterId;
 
     @Column(name = "host_ip")
-    private String hostip;
+    private String hostIp;
 
     @Column(name = "disk_offering_id")
     private long diskOfferingId;
@@ -425,11 +425,11 @@ public void setPath(String path) {
     }
 
     public String getHostIp() {
-        return hostip;
+        return hostIp;
     }
 
     public void setHostIp(String hostip) {
-        this.hostip = hostip;
+        this.hostIp = hostip;
     }
 
     public void setPodId(Long podId) {
@@ -683,14 +683,6 @@ public void setCreated(Date created) {
         this.created = created;
     }
 
-    public String getHostip() {
-        return hostip;
-    }
-
-    public void setHostip(String hostip) {
-        this.hostip = hostip;
-    }
-
     public void setUpdatedCount(long updatedCount) {
         this.updatedCount = updatedCount;
     }