algod: Importer Plugin Update

[Eric-Warehime]

Summary

Reverts a bunch of stuff that I was trying around retries which actually made performance worse.

Also, updates the algod importer to actually use deltas when in follower mode.

Test Plan

Perf tests run against this:

round	runtime_duration_s	runtime_duration
1000000	5936	1h38m56s
2000000	13183	3h39m43s
3000000	18963	5h16m3s
4000000	27924	7h45m24s
5000000	34611	9h36m51s
6000000	41275	11h27m55s
7000000	49959	13h52m39s
8000000	57025	15h50m25s
9000000	65416	18h10m16s
10000000	72542	20h9m2s
11000000	79675	22h7m55s
12000000	91056	25h17m36s
13000000	100850	28h0m50s
14000000	108774	30h12m54s
15000000	117788	32h43m8s
16000000	126446	35h7m26s
17000000	136629	37h57m9s
18000000	148541	41h15m41s
19000000	162514	45h8m34s
20000000	174521	48h28m41s
21000000	184772	51h19m32s
22000000	195869	54h24m29s
23000000	204678	56h51m18s
24000000	213874	59h24m34s
25000000	224335	62h18m55s
26000000	234697	65h11m37s
27000000	242708	67h25m8s

[codecov]

Codecov Report

Merging #1478 (17120a0) into develop (b94e4f1) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #1478      +/-   ##
===========================================
+ Coverage    65.40%   65.41%   +0.01%     
===========================================
  Files           82       82              
  Lines        11443    11447       +4     
===========================================
+ Hits          7484     7488       +4     
  Misses        3389     3389              
  Partials       570      570              

Impacted Files	Coverage Δ
conduit/plugins/importers/algod/algod_importer.go	78.68% <100.00%> (+0.72%)	⬆️

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