Revert "MERGE PR: updated the Stats data of QEarn SC (#243)"

This reverts commit 9889ac2.

src/contracts/Qearn.h

@@ -269,8 +269,7 @@ struct QEARN : public ContractBase
         output.totalLockedAmount = 0;
         output.averageAPY = 0;
         locals.cnt = 0;
-
-        for(locals._t = qpi.epoch() - 1U; locals._t >= qpi.epoch() - 52U; locals._t--)
+        for(locals._t = qpi.epoch(); locals._t >= qpi.epoch() - 52U; locals._t--)
         {
             if(locals._t < QEARN_INITIAL_EPOCH)
             {
@@ -771,13 +770,14 @@ struct QEARN : public ContractBase
         /*
             the initial total locked amount should exclude the amount that locked on initial epoch but it didn't exclude that amount before. 
             so now it is updated.
-            I recorded the initial total locked amount of epoch 139 with 1834842583179.
-            this line will be deleted at epoch 141 at least.
+            I recorded the initial total locked amount of epoch 138 with 6924939374040.
+            once the epoch 139 is finished, I will also update the initial total locked amount of epoch 139.
+            this line will be deleted at epoch 140 or 141 at least.
         */
-        locals.INITIALIZE_ROUNDINFO._epochBonusAmount = state._initialRoundInfo.get(139)._epochBonusAmount;
-        locals.INITIALIZE_ROUNDINFO._totalLockedAmount = 1834842583179;
+        locals.INITIALIZE_ROUNDINFO._epochBonusAmount = state._initialRoundInfo.get(138)._epochBonusAmount;
+        locals.INITIALIZE_ROUNDINFO._totalLockedAmount = 6924939374040;
 
-        state._initialRoundInfo.set(139, locals.INITIALIZE_ROUNDINFO);
+        state._initialRoundInfo.set(138, locals.INITIALIZE_ROUNDINFO);
 	_
 
     struct END_EPOCH_locals 

test/contract_qearn.cpp

@@ -376,10 +376,10 @@ class ContractTestingQearn : protected ContractTesting
 
         const auto scStatsInfo = getStatsPerEpoch(epoch);
         /*
-            we can't test at epoch 139 because the value of state in QEarn SC was assigned by hardcoding.
-            To test the epoch 139, please remove the line 776~779 in QEarn SC.
+            we can't test at epoch 138 because the value of state in QEarn SC was assigned by hardcoding.
+            To test the epoch 138, please remove the line 777~780 in QEarn SC.
         */
-        if(epoch != 139)    
+        if(epoch != 138)    
         {
             EXPECT_EQ(scStatsInfo.earlyUnlockedAmount, ed.initialTotalLockedAmount - ed.amountCurrentlyLocked);
             EXPECT_EQ(scStatsInfo.earlyUnlockedPercent, QPI::div((ed.initialTotalLockedAmount - ed.amountCurrentlyLocked) * 10000, ed.initialTotalLockedAmount));