remove pcc from remind2 reporting to fix summation checks

[orichters]

• was mentioned before: remove pcc and pco from remind2 #378
• pcc is an "outdated technology" not covered by REMIND anymore
• still, somehow it was reported in reportSE anyway as SE|Electricity|Coal|++|Pulverised Coal w/ CC (EJ/yr)
• This broke the summation group because it was not part of pe2se$all_te anymore and was therefore not added to SE|Electricity|+|Coal

SE|Electricity|+|Coal <
   + SE|Electricity|Coal|++|Gasification Combined Cycle w/o CC
   + SE|Electricity|Coal|++|Gasification Combined Cycle w/ CC
   + SE|Electricity|Coal|++|Pulverised Coal w/o CC
   + SE|Electricity|Coal|++|Pulverised Coal w/ CC
   + SE|Electricity|Coal|++|Combined Heat and Power w/o CC
   + SE|Electricity|Coal|++|Other
Relative difference between -321.83% and -0.00000608%, absolute difference up to 0.0000375 EJ/yr.

So let us kill it.

[LaviniaBaumstark]

why was it not 0 in reportSE so that it could break the summationCheck?

[orichters]

Because it is not zero, probably because we did not operate it out of the input data:

> output <- remind2::reportSE("output/testOneRegi/fulldata.gdx")
> output[,,"SE|Electricity|Coal|++|Pulverised Coal w/ CC (EJ/yr)"]
An object of class "magpie"
, , d3 = SE|Electricity|Coal|++|Pulverised Coal w/ CC (EJ/yr)

        tall
all_regi y2005 y2010 y2015        y2020        y2025        y2030        y2035
     LAM     0     0     0 1.104074e-06 2.207520e-06 2.207520e-06 2.207520e-06
     OAS     0     0     0 0.000000e+00 0.000000e+00 0.000000e+00 2.207520e-06
     SSA     0     0     0 0.000000e+00 0.000000e+00 0.000000e+00 2.207520e-06
     EUR     0     0     0 1.091369e-06 2.207520e-06 2.227425e-06 2.207520e-06
     NEU     0     0     0 1.104074e-06 2.207520e-06 2.207520e-06 2.207520e-06
     MEA     0     0     0 1.101305e-06 2.207520e-06 2.207520e-06 2.207520e-06
     REF     0     0     0 0.000000e+00 0.000000e+00 2.207520e-06 4.413783e-06
     CAZ     0     0     0 1.104074e-06 2.207520e-06 2.207520e-06 2.207520e-06
     CHA     0     0     0 1.091369e-06 2.207520e-06 2.227425e-06 2.207520e-06
     IND     0     0     0 0.000000e+00 0.000000e+00 0.000000e+00 2.207520e-06
     JPN     0     0     0 0.000000e+00 0.000000e+00 2.207520e-06 4.413783e-06
     USA     0     0     0 1.101305e-06 2.207520e-06 2.207520e-06 2.207520e-06
     GLO     0     0     0 7.697570e-06 1.545264e-05 1.990749e-05 3.090277e-05
        tall
all_regi        y2040        y2045        y2050        y2055        y2060
     LAM 2.207520e-06 2.207520e-06 2.207520e-06 2.207520e-06 2.257446e-06
     OAS 4.413783e-06 4.402688e-06 4.362685e-06 4.264102e-06 4.066675e-06
     SSA 4.413783e-06 4.402688e-06 4.362685e-06 4.264102e-06 4.066675e-06
     EUR 2.207520e-06 2.207520e-06 2.285854e-06 2.207520e-06 2.325311e-06
     NEU 2.207520e-06 2.207520e-06 2.207520e-06 2.207520e-06 2.437916e-06
     MEA 2.207520e-06 2.207520e-06 2.207520e-06 2.207520e-06 2.261251e-06
     REF 4.402688e-06 4.362685e-06 4.264102e-06 4.066675e-06 3.719543e-06
     CAZ 2.207520e-06 2.207520e-06 2.244210e-06 2.207520e-06 2.207520e-06
     CHA 2.207520e-06 2.207520e-06 2.207520e-06 2.207520e-06 2.429352e-06
     IND 4.413783e-06 4.402688e-06 4.362685e-06 4.264102e-06 4.066675e-06
     JPN 4.402688e-06 4.362685e-06 4.264102e-06 4.066675e-06 3.719543e-06
     USA 2.207520e-06 2.207520e-06 2.207520e-06 2.207520e-06 2.261251e-06
     GLO 3.749936e-05 3.738607e-05 3.718392e-05 3.637830e-05 3.581916e-05
        tall
all_regi        y2070        y2080        y2090        y2100        y2110 y2130 y2150
     LAM 2.207520e-06 2.597860e-06 2.207520e-06 1.477037e-06 5.673414e-07     0     0
     OAS 3.161249e-06 2.219218e-06 2.207520e-06 2.138032e-06 1.864989e-06     0     0
     SSA 3.161249e-06 2.219218e-06 2.207520e-06 2.138032e-06 1.864989e-06     0     0
     EUR 2.207520e-06 2.339434e-06 2.207520e-06 1.432837e-06 5.013794e-07     0     0
     NEU 2.207520e-06 2.338190e-06 2.207520e-06 1.420094e-06 4.957102e-07     0     0
     MEA 2.207520e-06 2.597883e-06 2.207520e-06 1.476864e-06 5.673442e-07     0     0
     REF 3.392632e-06 2.207520e-06 2.207520e-06 1.938602e-06 1.241563e-06     0     0
     CAZ 2.207520e-06 2.599985e-06 2.207520e-06 1.483262e-06 5.711023e-07     0     0
     CHA 2.207520e-06 2.338573e-06 2.207520e-06 1.420352e-06 4.943639e-07     0     0
     IND 3.161249e-06 2.219218e-06 2.207520e-06 2.138032e-06 1.864989e-06     0     0
     JPN 3.392632e-06 2.207520e-06 2.207520e-06 1.938602e-06 1.241563e-06     0     0
     USA 2.207520e-06 2.597883e-06 2.207520e-06 1.476864e-06 5.673442e-07     0     0
     GLO 3.172165e-05 2.848250e-05 2.649024e-05 2.047861e-05 1.184268e-05     0     0

[0UmfHxcvx5J7JoaOhFSs5mncnisTJJ6q]

But pcc should be fixed to 0 in REMIND to avoid confusion (and at some point in the future remove it).