Removed unneccessary id fields in entities

src/main/java/rocks/zipcode/io/domain/Cohort.java

     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @Column(name = "cohort_id")
-    private Double cohortId;
-
     @Column(name = "grad_date")
     private String gradDate;
 
         this.id = id;
     }
 
-    public Double getCohortId() {
-        return cohortId;
-    }
-
-    public Cohort cohortId(Double cohortId) {
-        this.cohortId = cohortId;
-        return this;
-    }
-
-    public void setCohortId(Double cohortId) {
-        this.cohortId = cohortId;
-    }
-
     public String getGradDate() {
         return gradDate;
     }
     public String toString() {
         return "Cohort{" +
             "id=" + getId() +
-            ", cohortId=" + getCohortId() +
             ", gradDate='" + getGradDate() + "'" +
             "}";
     }

src/main/java/rocks/zipcode/io/domain/Employer.java

     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @Column(name = "employer_id")
-    private Long employerId;
-
     @Column(name = "company_name")
     private String companyName;
 
         this.id = id;
     }
 
-    public Long getEmployerId() {
-        return employerId;
-    }
-
-    public Employer employerId(Long employerId) {
-        this.employerId = employerId;
-        return this;
-    }
-
-    public void setEmployerId(Long employerId) {
-        this.employerId = employerId;
-    }
-
     public String getCompanyName() {
         return companyName;
     }
     public String toString() {
         return "Employer{" +
             "id=" + getId() +
-            ", employerId=" + getEmployerId() +
             ", companyName='" + getCompanyName() + "'" +
             ", city='" + getCity() + "'" +
             ", state='" + getState() + "'" +

src/main/java/rocks/zipcode/io/domain/Post.java

     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @Column(name = "post_id")
-    private Long postId;
-
     @Column(name = "jhi_timestamp")
     private LocalDate timestamp;
 
         this.id = id;
     }
 
-    public Long getPostId() {
-        return postId;
-    }
-
-    public Post postId(Long postId) {
-        this.postId = postId;
-        return this;
-    }
-
-    public void setPostId(Long postId) {
-        this.postId = postId;
-    }
-
     public LocalDate getTimestamp() {
         return timestamp;
     }
     public String toString() {
         return "Post{" +
             "id=" + getId() +
-            ", postId=" + getPostId() +
             ", timestamp='" + getTimestamp() + "'" +
             ", content='" + getContent() + "'" +
             ", likes='" + getLikes() + "'" +

src/main/java/rocks/zipcode/io/domain/Privacy.java

     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @Column(name = "privacy_id")
-    private Long privacyId;
-
     @Column(name = "public_view")
     private Boolean publicView;
 
         this.id = id;
     }
 
-    public Long getPrivacyId() {
-        return privacyId;
-    }
-
-    public Privacy privacyId(Long privacyId) {
-        this.privacyId = privacyId;
-        return this;
-    }
-
-    public void setPrivacyId(Long privacyId) {
-        this.privacyId = privacyId;
-    }
-
     public Boolean isPublicView() {
         return publicView;
     }
     public String toString() {
         return "Privacy{" +
             "id=" + getId() +
-            ", privacyId=" + getPrivacyId() +
             ", publicView='" + isPublicView() + "'" +
             ", cohortView='" + isCohortView() + "'" +
             ", employerView='" + isEmployerView() + "'" +

src/main/java/rocks/zipcode/io/domain/UserProfile.java

     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @Column(name = "profile_id")
-    private Long profileId;
-
     @Column(name = "first_name")
     private String firstName;
 
         this.id = id;
     }
 
-    public Long getProfileId() {
-        return profileId;
-    }
-
-    public UserProfile profileId(Long profileId) {
-        this.profileId = profileId;
-        return this;
-    }
-
-    public void setProfileId(Long profileId) {
-        this.profileId = profileId;
-    }
-
     public String getFirstName() {
         return firstName;
     }
     public String toString() {
         return "UserProfile{" +
             "id=" + getId() +
-            ", profileId=" + getProfileId() +
             ", firstName='" + getFirstName() + "'" +
             ", lastName='" + getLastName() + "'" +
             ", userStack='" + getUserStack() + "'" +