Cleanup: remove unused interfaces for helpers

I can only guess here: maybe they were added to more clearly document the public
interface of the classes? If so, I don't think that works. Developers who are
not familiar with the convention will just add a new public method to the class
without updating the interface.

pkg/gui/controllers/helpers/commits_helper.go

@@ -12,10 +12,6 @@ import (
 	"github.com/samber/lo"
 )
 
-type ICommitsHelper interface {
-	UpdateCommitPanelView(message string)
-}
-
 type CommitsHelper struct {
 	c *HelperCommon
 
@@ -26,8 +22,6 @@ type CommitsHelper struct {
 	setCommitDescription          func(string)
 }
 
-var _ ICommitsHelper = &CommitsHelper{}
-
 func NewCommitsHelper(
 	c *HelperCommon,
 	getCommitSummary func() string,

pkg/gui/controllers/helpers/files_helper.go

@@ -6,12 +6,6 @@ import (
 	"github.com/samber/lo"
 )
 
-type IFilesHelper interface {
-	EditFiles(filenames []string) error
-	EditFileAtLine(filename string, lineNumber int) error
-	OpenFile(filename string) error
-}
-
 type FilesHelper struct {
 	c *HelperCommon
 }
@@ -22,8 +16,6 @@ func NewFilesHelper(c *HelperCommon) *FilesHelper {
 	}
 }
 
-var _ IFilesHelper = &FilesHelper{}
-
 func (self *FilesHelper) EditFiles(filenames []string) error {
 	absPaths := lo.Map(filenames, func(filename string, _ int) string {
 		absPath, err := filepath.Abs(filename)

pkg/gui/controllers/helpers/host_helper.go

@@ -6,11 +6,6 @@ import (
 
 // this helper just wraps our hosting_service package
 
-type IHostHelper interface {
-	GetPullRequestURL(from string, to string) (string, error)
-	GetCommitURL(commitHash string) (string, error)
-}
-
 type HostHelper struct {
 	c *HelperCommon
 }

pkg/gui/controllers/helpers/patch_building_helper.go

@@ -9,10 +9,6 @@ import (
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 )
 
-type IPatchBuildingHelper interface {
-	ValidateNormalWorkingTreeState() (bool, error)
-}
-
 type PatchBuildingHelper struct {
 	c *HelperCommon
 }

pkg/gui/controllers/helpers/refs_helper.go

@@ -14,15 +14,6 @@ import (
 	"github.com/samber/lo"
 )
 
-type IRefsHelper interface {
-	CheckoutRef(ref string, options types.CheckoutRefOptions) error
-	GetCheckedOutRef() *models.Branch
-	CreateGitResetMenu(ref string) error
-	CreateCheckoutMenu(commit *models.Commit) error
-	ResetToRef(ref string, strength string, envVars []string) error
-	NewBranch(from string, fromDescription string, suggestedBranchname string) error
-}
-
 type RefsHelper struct {
 	c *HelperCommon
 }
@@ -35,8 +26,6 @@ func NewRefsHelper(
 	}
 }
 
-var _ IRefsHelper = &RefsHelper{}
-
 func (self *RefsHelper) CheckoutRef(ref string, options types.CheckoutRefOptions) error {
 	waitingStatus := options.WaitingStatus
 	if waitingStatus == "" {

pkg/gui/controllers/helpers/suggestions_helper.go

@@ -26,20 +26,10 @@ import (
 // finding suggestions in this file, so that it's easy to see if a function already
 // exists for fetching a particular model.
 
-type ISuggestionsHelper interface {
-	GetRemoteSuggestionsFunc() func(string) []*types.Suggestion
-	GetBranchNameSuggestionsFunc() func(string) []*types.Suggestion
-	GetFilePathSuggestionsFunc() func(string) []*types.Suggestion
-	GetRemoteBranchesSuggestionsFunc(separator string) func(string) []*types.Suggestion
-	GetRefsSuggestionsFunc() func(string) []*types.Suggestion
-}
-
 type SuggestionsHelper struct {
 	c *HelperCommon
 }
 
-var _ ISuggestionsHelper = &SuggestionsHelper{}
-
 func NewSuggestionsHelper(
 	c *HelperCommon,
 ) *SuggestionsHelper {

pkg/gui/controllers/helpers/upstream_helper.go

@@ -14,15 +14,6 @@ type UpstreamHelper struct {
 	getRemoteBranchesSuggestionsFunc func(string) func(string) []*types.Suggestion
 }
 
-type IUpstreamHelper interface {
-	ParseUpstream(string) (string, string, error)
-	PromptForUpstreamWithInitialContent(*models.Branch, func(string) error) error
-	PromptForUpstreamWithoutInitialContent(*models.Branch, func(string) error) error
-	GetSuggestedRemote() string
-}
-
-var _ IUpstreamHelper = &UpstreamHelper{}
-
 func NewUpstreamHelper(
 	c *HelperCommon,
 	getRemoteBranchesSuggestionsFunc func(string) func(string) []*types.Suggestion,

pkg/gui/controllers/helpers/working_tree_helper.go

@@ -12,13 +12,6 @@ import (
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 )
 
-type IWorkingTreeHelper interface {
-	AnyStagedFiles() bool
-	AnyTrackedFiles() bool
-	IsWorkingTreeDirty() bool
-	FileForSubmodule(submodule *models.SubmoduleConfig) *models.File
-}
-
 type WorkingTreeHelper struct {
 	c             *HelperCommon
 	refHelper     *RefsHelper

pkg/gui/controllers/helpers/worktree_helper.go

@@ -12,11 +12,6 @@ import (
 	"github.com/jesseduffield/lazygit/pkg/utils"
 )
 
-type IWorktreeHelper interface {
-	GetMainWorktreeName() string
-	GetCurrentWorktreeName() string
-}
-
 type WorktreeHelper struct {
 	c                 *HelperCommon
 	reposHelper       *ReposHelper