Clean up legacy methods and naming

remove: startGsiInstall
   framework does not use the old prototype any more.
remove: getGsiStatus
   framework does not use it any more.
rename: setGsiBootable -> enableGsi
   make it consistent with its reverse action: disableGsi

rename: removeGsiInstall -> removeGsi
rename: disableGsiInstall -> disableGsi
   the word install now refers to the installation session.
   rename for consistency.

Bug: 138544413
Test: gsi_tool install/enable/disable
  adb shell am start-activity \
    -n com.android.dynsystem/com.android.dynsystem.VerificationActivity \
    -a android.os.image.action.START_INSTALL \
    -d file:///storage/emulated/0/Download/system.raw.gz \
    --el KEY_SYSTEM_SIZE $(du -b system.raw|cut -f1) \
    --el KEY_USERDATA_SIZE 8589934592

Change-Id: I974d781d1eca82cecd813ad7bf557c5aec6f8f45
Merged-In: I974d781d1eca82cecd813ad7bf557c5aec6f8f45
diff --git a/gsi_service.cpp b/gsi_service.cpp
index 4caf353..f9805c4 100644
--- a/gsi_service.cpp
+++ b/gsi_service.cpp
@@ -102,15 +102,6 @@
         if (!status.isOk()) return status;                            \
     } while (0)
 
-binder::Status GsiService::startGsiInstall(int64_t gsiSize, int64_t userdataSize, bool wipeUserdata,
-                                           int* _aidl_return) {
-    GsiInstallParams params;
-    params.gsiSize = gsiSize;
-    params.userdataSize = userdataSize;
-    params.wipeUserdata = wipeUserdata;
-    return beginGsiInstall(params, _aidl_return);
-}
-
 binder::Status GsiService::beginGsiInstall(const GsiInstallParams& given_params,
                                            int* _aidl_return) {
     ENFORCE_SYSTEM;
@@ -192,7 +183,7 @@
     return binder::Status::ok();
 }
 
-binder::Status GsiService::setGsiBootable(bool one_shot, int* _aidl_return) {
+binder::Status GsiService::enableGsi(bool one_shot, int* _aidl_return) {
     std::lock_guard<std::mutex> guard(parent_->lock());
 
     if (installer_) {
@@ -223,7 +214,7 @@
     return binder::Status::ok();
 }
 
-binder::Status GsiService::removeGsiInstall(bool* _aidl_return) {
+binder::Status GsiService::removeGsi(bool* _aidl_return) {
     ENFORCE_SYSTEM_OR_SHELL;
     std::lock_guard<std::mutex> guard(parent_->lock());
 
@@ -244,7 +235,7 @@
     return binder::Status::ok();
 }
 
-binder::Status GsiService::disableGsiInstall(bool* _aidl_return) {
+binder::Status GsiService::disableGsi(bool* _aidl_return) {
     ENFORCE_SYSTEM_OR_SHELL;
     std::lock_guard<std::mutex> guard(parent_->lock());
 
@@ -288,78 +279,6 @@
     return binder::Status::ok();
 }
 
-binder::Status GsiService::getGsiBootStatus(int* _aidl_return) {
-    ENFORCE_SYSTEM_OR_SHELL;
-    std::lock_guard<std::mutex> guard(parent_->lock());
-
-    if (!IsGsiInstalled()) {
-        *_aidl_return = BOOT_STATUS_NOT_INSTALLED;
-        return binder::Status::ok();
-    }
-
-    std::string boot_key;
-    if (!GetInstallStatus(&boot_key)) {
-        PLOG(ERROR) << "read " << kDsuInstallStatusFile;
-        *_aidl_return = BOOT_STATUS_NOT_INSTALLED;
-        return binder::Status::ok();
-    }
-
-    bool single_boot = !access(kDsuOneShotBootFile, F_OK);
-
-    if (boot_key == kInstallStatusWipe) {
-        // This overrides all other statuses.
-        *_aidl_return = BOOT_STATUS_WILL_WIPE;
-    } else if (boot_key == kInstallStatusDisabled) {
-        // A single-boot GSI will have a "disabled" status, because it's
-        // disabled immediately upon reading the one_shot_boot file. However,
-        // we still want to return SINGLE_BOOT, because it makes the
-        // transition clearer to the user.
-        if (single_boot) {
-            *_aidl_return = BOOT_STATUS_SINGLE_BOOT;
-        } else {
-            *_aidl_return = BOOT_STATUS_DISABLED;
-        }
-    } else if (single_boot) {
-        *_aidl_return = BOOT_STATUS_SINGLE_BOOT;
-    } else {
-        *_aidl_return = BOOT_STATUS_ENABLED;
-    }
-    return binder::Status::ok();
-}
-
-binder::Status GsiService::getUserdataImageSize(int64_t* _aidl_return) {
-    ENFORCE_SYSTEM;
-    std::lock_guard<std::mutex> guard(parent_->lock());
-
-    *_aidl_return = -1;
-
-    if (installer_) {
-        // Size has already been computed.
-        *_aidl_return = installer_->userdata_size();
-    } else if (IsGsiRunning()) {
-        // :TODO: libdm
-        unique_fd fd(open(kUserdataDevice, O_RDONLY | O_NOFOLLOW | O_CLOEXEC));
-        if (fd < 0) {
-            PLOG(ERROR) << "open " << kUserdataDevice;
-            return binder::Status::ok();
-        }
-
-        int64_t size;
-        if (ioctl(fd, BLKGETSIZE64, &size)) {
-            PLOG(ERROR) << "BLKGETSIZE64 " << kUserdataDevice;
-            return binder::Status::ok();
-        }
-        *_aidl_return = size;
-    } else {
-        if (auto manager = ImageManager::Open(kDsuMetadataDir, GetInstalledImageDir())) {
-            if (auto device = MappedDevice::Open(manager.get(), 10s, "userdata_gsi")) {
-                *_aidl_return = get_block_device_size(device->fd());
-            }
-        }
-    }
-    return binder::Status::ok();
-}
-
 binder::Status GsiService::getInstalledGsiImageDir(std::string* _aidl_return) {
     ENFORCE_SYSTEM;
     std::lock_guard<std::mutex> guard(parent_->lock());