update targets.json remove redundant extra_lables

Author: Qinghao Shi

targets/targets.json

@@ -4018,39 +4018,33 @@
         "inherits": ["ARM_FM"],
         "public": false,
         "supported_toolchains": ["GCC_ARM", "ARM", "IAR"],
-        "extra_labels_add": ["FVP_MPS2"],
         "OUTPUT_EXT": "elf",
         "device_has": ["AACI", "ANALOGIN", "CLCD", "I2C", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "SERIAL", "SERIAL_FC", "SPI", "SPISLAVE", "TSC"],
         "release_versions": ["5"]
     },
     "FVP_MPS2_M0": {
         "inherits": ["FVP_MPS2"],
         "core": "Cortex-M0",
-        "extra_labels_add": ["FVP_MPS2_M0"],
         "macros": ["CMSDK_CM0","CMSIS_VECTAB_VIRTUAL", "CMSIS_VECTAB_VIRTUAL_HEADER_FILE=\"cmsis_nvic.h\""]
     },
     "FVP_MPS2_M0P": {
         "inherits": ["FVP_MPS2"],
         "core": "Cortex-M0+",
-        "extra_labels_add": ["FVP_MPS2_M0P"],
         "macros": ["CMSDK_CM0plus"]
     },
     "FVP_MPS2_M3": {
         "inherits": ["FVP_MPS2"],
         "core": "Cortex-M3",
-        "extra_labels_add": ["FVP_MPS2_M3"],
         "macros": ["CMSDK_CM3"]
     },
     "FVP_MPS2_M4": {
         "inherits": ["FVP_MPS2"],
         "core": "Cortex-M4",
-        "extra_labels_add": ["FVP_MPS2_M4"],
         "macros": ["CMSDK_CM4"]
     },
     "FVP_MPS2_M7": {
         "inherits": ["FVP_MPS2"],
         "core": "Cortex-M7",
-        "extra_labels_add": ["FVP_MPS2_M7"],
         "macros": ["CMSDK_CM7"]
     }
 }