Remove mention of lack of support for HAL1.3 in GpuAcc

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: I2ac8b2dd1d012ddcd2f134f6d0d564f068caf601
diff --git a/NnapiSupport.txt b/NnapiSupport.txt
index 7e1999b..989dc5f 100644
--- a/NnapiSupport.txt
+++ b/NnapiSupport.txt
@@ -82,6 +82,4 @@
 NOTE: By convention, only those tensor types have been listed above, which are fully supported across all
 ArmNN backends.
     - FLOAT16 input tensors are partially supported on most HAL 1.2 operators on the GpuAcc and
-    CpuRef backends, however not on CpuAcc.
-    - QUANT8_ASYMM_SIGNED has been added to the list in spite of not being supported in GpuAcc,
-    as this data type was added as part of HAL 1.3, which is currently not supported by GpuAcc.
+    CpuRef backends, however not on CpuAcc.
\ No newline at end of file