[systemtime] dont init rtc again during set (#28651)
diff --git a/src/platform/Ameba/SystemTimeSupport.cpp b/src/platform/Ameba/SystemTimeSupport.cpp
index 5b7d03b..2fee972 100644
--- a/src/platform/Ameba/SystemTimeSupport.cpp
+++ b/src/platform/Ameba/SystemTimeSupport.cpp
@@ -94,7 +94,6 @@
struct rtkTimeVal tv;
tv.tv_sec = static_cast<uint32_t>(aNewCurTime.count() / UINT64_C(1000000));
tv.tv_usec = static_cast<uint32_t>(aNewCurTime.count() % UINT64_C(1000000));
- matter_rtc_init();
matter_rtc_write(tv.tv_sec);
return CHIP_NO_ERROR;