promqltest: add/remove explicit annotation expectations to relevant tests

Signed-off-by: Kapil Lamba <kapillamba4@gmail.com>

promql/promqltest/testdata/at_modifier.test

@@ -90,9 +90,7 @@ eval instant at 25s sum_over_time(metric{job="1"}[100] offset 50s @ 100)
 eval instant at 25s metric{job="1"} @ 50 + metric{job="1"} @ 100
   {job="1"} 15
 
-# Note that this triggers an info annotation because we are rate'ing a metric that does not end in `_total`.
 eval instant at 25s rate(metric{job="1"}[100s] @ 100) + label_replace(rate(metric{job="2"}[123s] @ 200), "job", "1", "", "")
-  expect info
   {job="1"} 0.3
 
 eval instant at 25s sum_over_time(metric{job="1"}[100s] @ 100) + label_replace(sum_over_time(metric{job="2"}[100s] @ 100), "job", "1", "", "")

promql/promqltest/testdata/functions.test

@@ -370,7 +370,10 @@ eval instant at 100m deriv(testcounter_reset_middle_mix[110m])
 	{} 0.010606060606060607
 
 # deriv should silently ignore ranges consisting only of histograms.
+# expects both an empty result and no info/warn annotations.
 eval instant at 50m deriv(http_requests_histogram[60m])
+	expect no_info
+	expect no_warn
 	#empty
 
 # deriv should return NaN in case of +Inf or -Inf found.
@@ -423,6 +426,8 @@ eval instant at 60m predict_linear(testcounter_reset_middle_mix[60m], 50m)
 
 # predict_linear should silently ignore ranges consisting only of histograms.
 eval instant at 60m predict_linear(http_requests_histogram[60m], 50m)
+	expect no_info
+	expect no_warn
 	#empty
 
 # predict_linear should return NaN in case of +Inf or -Inf found.

promql/promqltest/testdata/limit.test

@@ -15,9 +15,13 @@ load 5m
 	bar 0 1 0 -1 0 1 0 -1 0 1 0
 
 eval instant at 50m count(limitk by (group) (0, http_requests))
+    expect no_info
+    expect no_warn
     # empty
 
 eval instant at 50m count(limitk by (group) (-1, http_requests))
+    expect no_info
+    expect no_warn
     # empty
 
 # Exercise k==1 special case (as sample is added before the main series loop).

promql/promqltest/testdata/operators.test

@@ -533,6 +533,8 @@ eval range from 0 to 60m step 6m left_floats == bool right_floats
   {} 0 _ _ _ 1 _ 0 0 0 1 1
 
 eval range from 0 to 60m step 6m left_floats == does_not_match
+  expect no_info
+  expect no_info
   # No results.
 
 eval range from 0 to 24m step 6m left_histograms == right_histograms
@@ -816,6 +818,8 @@ eval range from 0 to 60m step 6m Inf == bool left_floats
   {} 0 0 _ _ 0 _ 0 0 0 1 0
 
 eval range from 0 to 60m step 6m NaN == left_floats
+  expect no_info
+  expect no_warn
   # No results.
 
 eval range from 0 to 60m step 6m NaN == bool left_floats

promql/promqltest/testdata/subquery.test

@@ -156,4 +156,6 @@ load 5m
 	foo 3+0x10
 
 eval instant at 12m min_over_time((topk(1, foo))[1m:5m])
+	expect no_info
+	expect no_warn
 	#empty