Remove duplicate LID_STAGING_DIR

The LID_STAGING_DIR variable is defined repeatedly in meson.build,
and one of them is removed.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I69d25738d79cbc215588f2821d39527fea591a85
diff --git a/meson.build b/meson.build
index 9ddfe2f..7511647 100644
--- a/meson.build
+++ b/meson.build
@@ -48,7 +48,6 @@
   conf_data.set_quoted('LID_STAGING_DIR', '/var/lib/phosphor-software-manager/hostfw/staging')
   conf_data.set_quoted('LID_RUNNING_PATCH_DIR', '/usr/local/share/hostfw/running')
   conf_data.set_quoted('LID_ALTERNATE_PATCH_DIR', '/usr/local/share/hostfw/alternate')
-  conf_data.set_quoted('LID_STAGING_DIR', '/var/lib/phosphor-software-manager/hostfw/staging')
   conf_data.set('DMA_MAXSIZE', get_option('oem-ibm-dma-maxsize'))
   add_project_arguments('-DOEM_IBM', language : 'c')
   add_project_arguments('-DOEM_IBM', language : 'cpp')