ArmPlatformPkg/PL031RealTimeClockLib: remove needless instance init s… #504

Job	Run time
Analyze (ArmPkg, IA32,X64)	13m 39s
Analyze (CryptoPkg, IA32)	35m 2s
Analyze (CryptoPkg, X64)	31m 24s
Analyze (DynamicTablesPkg, IA32,X64)	10m 15s
Analyze (FatPkg, IA32,X64)	23m 34s
Analyze (FmpDevicePkg, IA32,X64)	17m 23s
Analyze (IntelFsp2Pkg, IA32,X64)	14m 55s
Analyze (IntelFsp2WrapperPkg, IA32,X64)	15m 41s
Analyze (MdeModulePkg, IA32)	29m 19s
Analyze (MdeModulePkg, X64)	28m 56s
Analyze (MdePkg, IA32,X64)	21m 31s
Analyze (PcAtChipsetPkg, IA32,X64)	14m 57s
Analyze (PrmPkg, IA32,X64)	17m 19s
Analyze (SecurityPkg, IA32,X64)	18m 27s
Analyze (ShellPkg, IA32,X64)	23m 44s
Analyze (SourceLevelDebugPkg, IA32,X64)	15m 0s
Analyze (StandaloneMmPkg, IA32,X64)	15m 21s
Analyze (UefiCpuPkg, IA32,X64)	19m 33s
Analyze (UnitTestFrameworkPkg, IA32,X64)	15m 53s
	6h 21m 53s

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