OvmfPkg: Remove unused BltLib reference

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Laszlo Ersek <lersek at redhat.com>

OvmfPkg/OvmfPkgIa32.dsc

@@ -634,10 +634,7 @@
   MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
   MdeModulePkg/Universal/MemoryTest/NullMemoryTestDxe/NullMemoryTestDxe.inf
 
-  OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf {
+  OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf
-    <LibraryClasses>
-      BltLib|OptionRomPkg/Library/FrameBufferBltLib/FrameBufferBltLib.inf
-  }
   OvmfPkg/VirtioGpuDxe/VirtioGpu.inf
 
   #

OvmfPkg/OvmfPkgIa32X64.dsc

@@ -643,10 +643,7 @@
   MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
   MdeModulePkg/Universal/MemoryTest/NullMemoryTestDxe/NullMemoryTestDxe.inf
 
-  OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf {
+  OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf
-    <LibraryClasses>
-      BltLib|OptionRomPkg/Library/FrameBufferBltLib/FrameBufferBltLib.inf
-  }
   OvmfPkg/VirtioGpuDxe/VirtioGpu.inf
 
   #

OvmfPkg/OvmfPkgX64.dsc

@@ -641,10 +641,7 @@
   MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
   MdeModulePkg/Universal/MemoryTest/NullMemoryTestDxe/NullMemoryTestDxe.inf
 
-  OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf {
+  OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf
-    <LibraryClasses>
-      BltLib|OptionRomPkg/Library/FrameBufferBltLib/FrameBufferBltLib.inf
-  }
   OvmfPkg/VirtioGpuDxe/VirtioGpu.inf
 
   #